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Virtual Museum of Coal Mining in Western Pennsylvania

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Coal Mines of Allegheny Co., PA MAIN INDEX
Coal Mines of Fayette Co., PA MAIN INDEX
Coal Mines of Indiana Co., PA MAIN INDEX
Coal Mines of Washington Co., PA MAIN INDEX
Coal Mines of Westmoreland Co., PA MAIN INDEX
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Allegheny County
Pennsylvania
Coal Mine
Index M
to the Bituminous Coal Mines of
Allegheny County,
Pennsylvania, U.S.A.

Index to the Coal Mines and Coal Companies which mined the Bituminous Coal seams of Allegheny County, Pennsylvania, U.S.A.

Compiled & Edited by Raymond A. Washlaski

Raymond A. Washlaski, Historian, Editor,
Ryan P. Washlaski, Technical Editor,

Updated Sept. 16, 2008

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Allegheny County Pennsylvania - Coal Mine Index
INDEX  M
[This listing of coal mines and coal companies has been researched and complied from various sources by Raymond A. Washlaski, Historian: newspaper articles, Pennsylvania Bureau of Mines Reports, county histories, township histories, Pennsylvania Geological Survey reports, topographical maps, personnal accounts of coal miners, etc., etc.]
Very few coal company employee records exist today.  Most Coal Company employee records have been lost or destroyed after the mines were closed. If you have mine records or know of the location of coal company employee records please let us know.

Your help is needed to preserve our coal mining heritage.
Please donate any mine records, mine maps or copies of them, pictures of the mines, pictures of miners, stories about the miners, mine memorabilia, books on mining, or tax deductable monetary donations to:
The Coal & Coke Heritage Center,
Penn State University Fayette Campus,
PA Rt. 119, P.O. Box 519, Uniontown, PA 15401

M. C. Bickerton Company,
See: Bickerton Mine, West Elizabeth, Allegheny Co., PA
See also: Bickerton Company,

M. P. Clark Company, Pittsburgh, PA
See: Coulter Mine, Allegheny Co., PA
See also: Clark Company, Pittsburgh, PA

Major Glenn Company,
See: Glenndale Mine, Allegheny Co., PA

Mallon & Sons Company,
See: Grant Mine, Allegheny Co., PA

Mangone Coal Company,
See: Victory Mine, Allegheny Co., PA

Mankedick Coal Company, Greggs, PA
See: Mankedick Mine, Greggs, Collier Twp., Allegheny Co., PA
       Pine Ridge Mine, Allegheny Co., PA

Mankedick Company, Sturgeon, PA
See: Star Mine, Sturgeon, Allegheny Co., PA
See also: Francis Mankedick Company, Sturgeon, PA

Mankedick Mine (ca.   ?   ), located near Greggs, Collier Twp., Allegheny Co., PA
Owners: (ca.    ?   ), Mankedick Coal Company, Greggs, PA

Manown, Forward Twp., Allegheny Co., PA
[A coal company patch town in Forward Twp., Allegheny Co., PA.]
See: Ivill Coal Company, Manown, PA
        Manown Mine, Manown, Forward Twp., Allegheny Co., PA
        Youghiogheny Gas Coal Company, Manown, PA

Manown Mine (ca.1898-  ?  ), located on the Monongahela Division of the Pittsburg & Lake Erie Railroad, Manown, Forward Twp., Allegheny Co., PA
Owners: (ca.1898-  ?  ), Youghiogheny Gas Coal Company, Manown, PA
              (ca.1900-  ?  ), Pittsburg Coal Company, Pittsburg, PA
              (ca.1903-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1906-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1914-  ?  ),  ?
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1919-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Manown Mine, Manown, Forward Twp., Allegheny Co., PA:
   Coal Miners Memorial Manown Mine, Manown, Forward Twp., Allegheny Co., PA

Mans Williams Coal Company,
See: Bulls Run Mine, Allegheny Co., PA

Mansfield Coal & Coke Company, 1042 Penn Avenue, Pittsburgh, PA
See: Mansfield No. 1 Mine, Loupnex, Allegheny Co., PA
       Mansfield No. 2 Mine, Loupnex, Allegheny Co., PA

Mansfield Coal Company,
See: Mansfield No. 1 Mine, Allegheny Co., PA

Mansfield Mine (ca.1914- ? ), a drift mine, located on the Pittsburg, Cincinnati, Chicago & St. Louis Railroad, at Carnegie, Allegheny Co., PA
Owners: (ca.1920- ? ), Pittsburgh Coal Company, Pittsburgh, PA

Mansfield No. 1 Mine (ca.1878- ? ), located on the Pittsburgh, Cincinnati, Chicago & St. Louis Railway, Chartiers Valley Branch, Loupnex, Allegheny Co., PA
Owners: (ca.1878-  ?  ), Mansfield Coal Company,
              (ca.1889-  ?  ), Mansfield Coal & Coke Company, 1042 Penn Avenue, Pittsburgh, PA
Web sites on the Mansfield No. 1 Mine, Loupnex, Allegheny Co., PA:
    Coal Miners Memorial Mansfield No. 1 Mine, Loupnex, Allegheny Co., PA

Mansfield No. 2 Mine (ca.1889- ? ), located on the P. C. C. & St. L. Railroad, Chartiers Valley Branch, Loupnex, Alegheny Co., PA
Owners: (ca.1889-  ?  ), Mansfield Coal & Coke Company, 1042 Penn Avenue, Pittsburgh, PA
              (ca.1892-  ?  ), Mansfield Coal & Coke Company, Mansfield Valley, PA
              (ca.1898-  ?  ), Mansfield Coal & Coke Company, Carnegie, PA
              (ca.1905-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1906-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1917-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Mansfield No. 2 Mine, Loupnex, Allegheny Co., PA:
    Coal Miners Memorial Mansfield No. 2 Mine, Loupnex, Allegheny Co., PA

Mansfield & Erie Mine (ca.1889- ? ), located at Chartiers, Allegheny Co., PA
Owners: (ca.1889-  ?  ), George Z. Hoosack Company, Chartiers, PA
              (ca.1892-  ?  ), Chartiers Creek Coal Company, Hamilton Building, Pittsburgh, PA
Web sites on the Mansfield & Erie Mine, Chartiers, Allegheny Co., PA:
    Coal Miners Memorial Mansfield & Erie Mine, Chartiers, Allegheny Co., PA

Manufactures' & Consumers' Coal Company, Pittsburg, PA
See: Bertha Mine, Allegheny Co., PA
        Blanche Mine, Washington Co., PA
        Rachel Mine, Allegheny Co., PA

Maple Glen Coal Works, Pittsburgh, PA
See:  Driftwood Mine, Washington Co., PA
        Maple Glen Mine, Washington Co., PA

Marcon Coal Company, Imperial, Pa
See: Marshall Mine, Allegheny Co., PA

Margaret Coal Company, Bridgeville, PA
See: Margaret Mine, Allegheny Co., PA

Margaret Coal Mining Company, Pittsburgh, PA
See: Margaret Mine, Indiana Co., PA

Margaret Mine (ca.1920-   ?  ), located in Allegheny Co., PA
Owners: (ca.1920-  ?  ), Margaert Coal Company, Bridgeville, PA

Margerum Mine (ca.1898-  ?  ), located on the Montour Railroad, Imperial, Allegheny Co., PA
Owners: (ca.1898-  ?  ), Morgan, Moore & Baine Company, Imperial, PA
              (ca.1903-  ?  ), Pittsburg Coal Company, Pittsburg, PA
              (ca.1905-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1917-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1920-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Margerum Mine, Imperial, Allegheny Co., PA:
    Coal Miners Memorial Margerum Mine, Inperial, Allegheny Co., PA

Marguerite Mine
(Margurette Mine), Allegheny Co., PA
See: Margurette Mine, Carnegie, Allegheny Co., PA

Margurette Mine
(Marguerite Mine) (ca.1917-  ?  ), a local trade mine, located near Carnegie, Allegheny Co., PA
[Marguerite Mine was listed as a new mine ca.1917.]
Owners: (ca.1917-  ?  ), B. F. Engineering Company, Carnegie, PA
              (ca.1919-  ?  ), B. F. Engineering Company, Carnegie, PA
              (ca.1920-  ?  ), B. F. Engineering Company, Carnegie, PA
Web sites on the Marguerite Mine, Carnegie, Allegheny Co., PA:
    Coal Miners Memorial Marguerite Mine, Carnegie, Allegheny Co., PA

Marie Mine (ca.1917-  ?  ), located on the Wabash Railroad, near Loupurex, Allegheny Co., PA
[Marie Mine was listed as a new mine ca.1917.)
Owners: (ca.1917-  ?  ), Bowerton Coal Company, Carnegie, PA
Web sites on the Marie Mine, Loupurex, Allegheny Co., PA:
    Coal Miners Memorial Marie Mine, Loupurex, Allegheny Co., PA

Marion Coal Company, Pittsburgh, PA
See: Burke Mine (Country Bank Mine), Squirrel Hill, Pittsburgh, Allegheny Co., PA
       Rose Mine, Allegheny Co., PA

Marmie & Carothers Country Bank Mine (ca.1923-  ?  ), located 1/2 mile SE. of B.M. 1121, on the Portvue-Elizabeth Road, Lincoln Twp., Allegheny Co., PA
Owners: (ca.1923- ?  ), Marmie & Carothers Company,

Marmie & Carothers Company,
See:  Marmie & Carothers County Bank Mine, Lincoln Twp., Allegheny Co.,PA

Marshall Mine (ca.1920-  ?  ), located in Allegheny Co., PA
Owners: (ca.1920-  ?  ), Marcon Coal Company, Imperial, Pa

Marshalsea, Upper St. Clair Twp., Allegheny Co., PA
[Located on the Chicago & St. Louis Railroad, Pittsburgh Division.]
See:

Mateer Coal Company,
See: Mateer No. 4 Mine, Fawn Twp., Allegheny Co., PA

Mateer No. 4 Mine (ca.1968-  ?  ), located in Fawn Twp., Allegheny Co., PA
Owners: (ca.1968-  ?  ), Mateer Coal Company,

Martin & Son Company, Turtle Creek, PA
See: Martin Mine, Turtle Creek, Allegheny Co., PA
See also: J. Martin & Son, Turtle Creek, PA

Martin Mine (ca.1903-  ?  ),  a small local trade mine, located in Turtle Creek, Allegheny Co., PA
Owners: (ca.1903-  ?  ), J. Martin & Son Company, Turtle Creek, PA
Web sites on the Martin Mine, Turtle Creek, Allegheny Co., PA:
    Coal Miners Memorial Martin Mine, Turtle Creek, Allegheny Co., PA

Maud Mine (ca.1903-  ?  ), a drift mine situated near Treveskyn, South Fayette Twp., Allegheny Co., PA
Owners: (ca.1903-  ?  ), Amyville - Youghiogheny Gas Coal Company, Bridgeville, PA
             (ca.1920-  ?  ), McClane Mining Company,

Maud No. 1 Mine (ca.1920-  ?  ), located in South Fayette Twp., Allegheny Co., PA
Owners: (ca.1920-  ?  ), McClane Mining Company,

Maud No. 2 Mine (ca.1920-  ?  ), located in South Fayette Twp., Allegheny Co., PA
Owners: (ca.1920-  ?  ), McClane Mining Company,
              (ca.1926-  ?  ), McClane Mining Company,

Maud No. 5 Mine (ca.   ?    ), located at Gladden, South Fayette Twp., Allegheny Co., PA
Owners:  (ca.   ?    ), McClane Mining Company,

May Mine (ca.1917-  ?  ),  a local trade wagon mine located at Boston, Elizabeth Twp., Allegheny Co., PA
Owners: (ca.1917-  ?  ), Boston Yough Coal Company, Dravosburg, PA
              (ca.1923-  ?  ), Boston Yough Coal Company, Dravosburg, PA
              (ca.1923-  ?  ), Boston Yough Coal Company, Dravosburg, PA

Mayer Brick Company, Bridgeville, PA
See: C. P. Mayer Brick Company, Bridgeville, PA
See also: Mayer Mine, Bridgeville, Allegheny Co., PA

Mayer Brick Company, Bridgeville, PA
See: Mayer Mine, Washington Co., PA
        Mayer No. 2 Mine, Allegheny Co., PA
See also: C. P. Mayer Brick Company, Bridgeville, PA

Mayer Mine (ca.1917-  ?  ), located on the P.C.C. & St. L. Railroad and P. & W. Va. Railroad, Bridgeville, Allegheny Co., PA
Owners: (ca.1917- ?  ), C. P. Mayer Brick Company, Bridgeville, PA
              (ca.1920-  ?  ), C. P. Mayer Brick Company, Bridgeville, PA
See also: C. P. Mayer Brick Company, Bridgeville, PA
Web sites on the Mayer Mine, Bridgeville, Allegheny Co., PA:
    Coal Miners Memorial Mayer Mine, Bridgeville, Allegheny Co., PA

Mayer No. 2 Mine (ca.1919-  ?  ), located in Allegheny Co., PA
[A stripping Operation.]
Owners: (ca.1919-  ?  ), C. P. Mayer Brick Company, Bridgeville, PA
              (ca.1920-  ?  ), C. P. Mayer Brick Company, Bridgeville, PA

Mayview Mine (ca.1920-  ?  ), located at Mayview, Allegheny Co., PA
Owners: (ca.1920-  ?  ), Pittsburgh City Company, Mayview, PA

McAbee, Plum Twp., Allegheny Co., PA
[Located on the Plum Creek Branch of the Pennsylvania Railroad and the Bessemer & Lake Erie Railroad.]
See:

McAbee Station, Plum Twp., Allegheny Co., PA
[Located on the Plum Creek Branch of the Pennsylvania Railroad and the Bessemer & Lake Erie Railroad.]
See:

McAllister & Gray Coal Company, Trafford, PA
See:

McClane Coal Company,
See: Katie Mine, Allegheny Co., PA

McClane Mine (ca.   ?   ), located in South Fayette Twp., Allegheny Co., PA
Owners: (ca.    ?    ), McClane Mining Company,

McClane Mining Company, Washington, PA
See: Maud No. 1 Mine, Allegheny Co., PA
        Maud No. 2 Mine, Allegheny Co., PA
        Maud No. 5 Mine, Allegheny Co., PA
        McClane Mine, Allegheny Co., PA
        Mildred Mine, Washington Co., PA
        Rich Hill No. 1 Mine, Washington Co., PA
        Rich Hill No. 2 Mine, Washington Co., PA

McClean Coal Company, Oakdale, PA
See: Oakridge Mine, Allegheny Co., PA
See also: R. J. McClean Coal Company, Oakdale, PA

McClean Mining Company, Bridgeville, PA
See: Catherine Mine, Allegheny Co., PA

McClure Coal Company,
See: Reed Mine, Lincoln Place, Allegheny Co., PA

McClure Mine (ca.   ?   ), located near Liberty, Lincoln Twp., Allegheny Co., PA
Owners: (ca.  ?  ), Mon-Yough Coal Company,

McClure No. 2 Mine (ca.1923-  ?  ), located at Liberty Boro, Portvue Twp., Allegheny Co., PA
Owners: (ca.1923-  ?  ), Mon-Yough Coal Company,

McClure No. 3 Mine (ca.1923-  ?  ), located at Belle Bridge, Lincoln Twp., Allegheny Co., PA
Owners: (ca.1923-  ?  ), Mon-Yough Coal Company,

McClosky Mine, Allegheny Co., PA
See: McClusky Mine, Allegheny Co., PA

McClusky Mine
(McClosky Mine) (ca.1878-  ? ), located near the Monongahela River, Alllegheny Co., PA
Owners: (ca.1878-  ? ), W. H. Brown's Heirs,
Web sites on the McClusky Mine, Monongahela River, Allegheny Co., PA:
   Coal Miners Memorial McClusky Mine, Monongahela River, Allegheny Co., PA

McCrea Coal Company, Bridgeville, PA
See: McCrea Mine, Washington Co., PA

McCue, Morris, Company,
See: Cherry Mine, Allegheny Co., PA

McDonald, Allegheny Co., PA
See: McDonald Coal Company, McDonald, PA
       Willow Grove Mine, McDonald, Allegheny Co., PA

McDonald Coal Company, McDonald, PA
See: Willow Grove Mine, McDonald, Allegheny Co., PA

McFetridge Bros. Coal Company, Creighton, PA
See: McFetridge Mine, Creighton, East Deer Twp., Allegheny Co., PA

McFetridge Brothers Coal Company, Creighton, PA
See: Hite Mine, Allegheny Co. PA
        McFetridge Mine, Creighton, East Deer Twp., Allegheny Co., PA

McFetridge Brothers Company, Hite, PA
See: Hites Mine, Hite, East Deer Twp., Allegheny Co., PA
        Hites No. 1 Mine, Hite, East Deer Twp., Allegheny Co., PA
        Hites No. 2 Mine, Hite, East Deer Twp., Allegheny Co., PA
        McFetridge Bros. No. 1 Mine, Hite, East Deer Twp., Allegheny Co., PA
        McFetridge Bros. No. 2 Mine, Hite, East Deer Twp., Allegheny Co., PA

McFetridge Mine (ca.1919- ?  ), located at Hite (Creighton), East Deer Twp., Allegheny Co., PA
Owners: (ca.1919-  ?  ), McFetridge Bros. Coal Company, Creighton, PA
              (ca.1942-  ?  ), McFetridge Brothers Coal Company,Creighton, PA

McFetridge Bros. No. 1 Mine
(Hites No. 1 Mine) (ca.1901-  ?  ), Hite (Creighton), East Deer Twp., Allegheny Co., PA
[The mine was called by both names.]
Owners: (ca.1901-  ?  ), McFetridge Brothers Company, Hite, PA

McFetridge Bros. No. 2 Mine
(Hites No. 2 Mine) (ca.1901-  ?  ), Hite (Creighton), East Deer Twp., Allegheny Co., PA
[The mine was called by both names.]
Owners: (ca.1901-  ?  ), McFetridge Brothers Company, Hite, PA

McJunkin Country Bank Mine (ca.1923- ? ), located 1 mile south of Plum Creek Church, Plum Twp., Allegheny Co., PA
Owners: (ca.1923- ? ), James McJunkin Company,

McKean Coal Company, Tarentum, PA
See: McKean Mine, near Tarentum, Allegheny Co., PA
        Peterson Mine, near Tarentum, Peterson, Tarentum, Allegheny Co., PA

McKean Mine (ca.1910-  ?  ), located near Tarentum, Allegheny Co., PA
[A drift Mine, mined by machine, mined the 7 foot Thick Freeport coal vein.]
Owners: (ca.1910-  ?  ), McKean Coal Company, Tarentum, PA

McKee Coal Company, Sturgeon, PA
See: Sturgeon Mine, Sturgeon, Allegheny Co., PA
See also: E. B. McKee Coal Company, Sturgeon, PA

McKees Rocks, Allegheny Co., PA
See: A. J. Shaffer Company, McKees Rocks, PA

McKees Rocks Mine (ca.1919-  ?  ), located near the Beck Mine & the Arbuckle Mine, west of McKees Rocks, Kennedy Twp., Allegheny Co., PA
Owners: (ca.1919-  ?  ), Fair Haven Coal Company, Pittsburgh, PA
              (ca.1920-  ?  ), Fair Haven Coal Company, Pittsburgh, PA

McKeesport, Allegheny Co., PA
See: Ella Coal Company, McKeesport, PA
        H. J. Myers Company, McKeesport, PA
        Myers Coal Company, McKeesport, PA
        Neal & Oliver Company, McKeesport, PA
        W. H. Brown's Sons Company, McKeesport, PA
        W. H. Chambers Company, McKeesport, PA
        William Neal Company, McKeesport, PA

McKeesport Coal & Coke Company,
See: Hubbard Mine, Allegheny Co., PA

McKinney & Brother Company, Duquesne, PA
See: McKinney Mine, Munhall, Allegheny Co., PA

McKinney Mine (ca.1875-  ?  ), located bewteen Duquesne & Munhall, opposite Braddock, on the west bank of the Monongahela River, Munhall, Allegheny Co., PA
Owners: (ca.1875-  ?  ), McKinney & Brother Company, Munhall, PA

McKnight & Company,
See: Butler Coal Works Mine, Bunola, Forward Twp., Allegheny Co., PA

McMinn, North Fayette Twp., Allegheny Co., PA
See:

McShane Coal Company, Crafton, PA
See: McShane Mine, Allegheny Co., PA
        Tepe Mine, Allegheny Co., PA

McShane Mine (ca.1920- ? ), a strip mining operation, located in Allegheny Co., PA
Owners: (ca.1920- ? ), McShane Coal Company, Crafton, PA

McVickers Brothers Company,
See: Rock Run Mine, Allegheny Co., PA

Meadow Lands Coal Company, Pittsburg, PA
See: Meadow Land No. 1 Mine, Washington Co., PA

Mehaffey Coal Company, McKeesport, Pa
See: Mehaffey Mine, Allegheny Co., PA
See also: John Mehaffey Coal Company, McKeesport, PA

Mehaffey Mine (ca.1917- ? ),  a local trade wagon mine located near McKeesport, Allegheny Co., PA
Owners: (ca.1917- ? ), John Mehaffey Company, McKeesport, PA
             (ca.1920- ?  ), John Mehaffey Company, McKeesport, PA

Melrose Coal Mining Company, Pittsburgh, PA
See:

Melrose Mine (ca.1915-   ?   ), located on the P. C. C. & St. L. Railroad, at Bridgeville, Allegheny Co., PA
Owners: (ca. 1915-  ?   ), South Fayette Coal Company, Bridgeville, PA
              (ca. 1917-  ?   ), South Fayette Coal Company, Bridgeville, PA
              (ca. 1921-  ?   ), South Fayette Coal Company, Bridgeville, PA
Web sites on the Melrose Mine, Bridgeville, Allegheny Co., PA:
    Coal Miners Memorial Melrose Mine, Bridgeville, Allegheny Co., PA

Mendelssohn, Jefferson Twp., Allegheny Co., PA
See:

Merchant Mine (ca.1889-  ?  ), a small mine, located on the Monongahela River, Allegheny Co., PA
Owners: (ca.1889-  ?  ),   ?

Merchants Coal Corp, Pittsburgh, PA
See: Merchants No. 3 Mine, near Boswell, Jenner Twp., Somerset Co., PA
       Orenda Mine, near Boswell, Orenda Mine, Jenner Twp., Somerset Co., PA
       Orenda No. 2 Mine, near Boswell, Orenda Mine, Jenner Twp., Somerset Co., PA
       Orenda No. 3 Mine, near Boswell, Orenda Mine, Jenner Twp., Somerset Co., PA
       Orenda No. 4 Mine, near Boswell, Orenda Mine, Jenner Twp., Somerset Co., PA
       Orenda No. 5 Mine, near Boswell, Orenda Mine, Jenner Twp., Somerset Co., PA

Michael & Gordon Mine (ca.1923-  ?  ), located 1 1/3 miles N/ NW. of Greenock / Emblem, Versailles Twp., Allegheny Co., PA
Owners: (ca.1923-  ?  ),  Robert Butler Company,

Midway, Allegheny Co., PA
See: Midway Mine, Midway, Allegheny Co., PA

Midway Block Coal Company, Pittsburg, PA
See: Midway Mine, Midway, Washington Co., PA

Midway Coal Company, Bridgeville, PA
See: Midway Mine, Midway, Washington Co., PA

Midway Mine (ca.1892- ? ), located on the P. C. C. & St. L. Railroad, at Midway, near Bridgeville, Allegheny Co., PA
Owners: (ca.1892- ? ), Robbins Coal Mining Company, Penn Building, Pittsburgh, PA
Web sites on the Midway Mine, Midway, Allegheny Co., PA:
    Coal Miners Memorial Midway Mine, Midway, Allegheny Co., PA

Mifflin Coal Coal Company, Pittsburgh, PA
See: Mifflin No. 1 Mine, Duquesne, Allegheny Co., PA
        Mifflin No. 2 Mine, Duquesne, Allegheny Co., PA

Mifflin No. 1 Mine (ca.1903- ? ), a drift opening mine, located on the Monongahela Southern Division of the Union Railroad, Duquesne, Mifflin Township,  Allegheny Co., PA
[A drift mine, pick mine, mining the 8 1/2 foot Pittsburg coal vein.]
Owners: (ca.1903-  ?  ), Mifflin Coal Company, Pittsburgh, PA
              (ca.1904-  ?  ),  ?
              (ca.1905-  ?  ), Mifflin Coal Company, Pittsburgh, PA
              (ca.1910-  ?  ), Mifflin Coal Company, Pittsburgh, PA
Web sites on the Mifflin No. 1 Mine, Mifflin Twp., Allegheny Co., PA:
    Coal Miners Memorial Mifflin No. 1 Mine, Mifflin Twp., Allegheny Co., PA

Mifflin No. 2 Mine (ca.1905- ? ), located on the Monongahela  Southern Division of Union Railroad, Duquesne, Mifflin Township, Allegheny Co., PA
[A drift mine, pick mine, mining the 8 1/2 foot Pittsburg coal vein.]
Owners: (ca.1905- ? ),  Mifflin Coal Company, Pittsburgh, PA
              (ca.1910-  ?  ), Mifflin Coal Company, Pittsburgh, PA
Web sites on the Mifflin No. 2 Mine, Mifflin Twp., Allegheny Co., PA:
    Coal Miners Memorial Mifflin No. 2 Mine, Mifflin Twp., Allegheny Co., PA

Milesville Mine (ca.1878- ? ), located on the Monongahela River, on the McKeesport & Bellevernon Railroad, later the P. & L. E. Railroad, at Milesville Station, Sunny Side, Allegheny Co., PA.
Owners: (ca.1878-  ?  ), Robbins, Linn & Company
              (ca.1889-  ?  ), Robert Jenkins Company, Sunny Side, PA
              (ca.1898-  ? ), Robert Jenkins, Sunny Side, PA
Web sites on the Milesville Mine, Milesville Station, Sunny Side, Allegheny Co.:
    Coal Miners Memorial Milesville Mine, Milesville Station, Sunny Side, Allegheny Co., PA

Milesville Station, Sunny Side, Allegheny Co., PA
See: Milesville Mine, Milesville Station, Sunny Side, Allegheny Co., PA

Mill Coal Company,
See: Mill Mine, Allegheny Co., PA

Mill Mine (ca.1922-  ? ),  located in Allegheny Co., PA
Owners: (ca.1922-  ?  ), Mill Coal Company,

Miller Brothers Company,
See: Miller Mine, Allegheny Co., PA

Miller Coal Company,
See: W. J. Miller Mine, Allegheny Co, PA
See also: Jennie Miller Coal Company,

Miller Coal Company,
See: Arbuckle Mine, Kennedy Twp., Allegheny Co., PA

Millers Grove (Option P.O.), Baldwin Twp., Allegheny Co., PA
See:

Miller Mine (ca.1917-  ?  ), located on the West Side Belt Railroad, near Bruceton, Jefferson Twp., Allegheny Co., PA
[Miller Mine was listed as a new mine ca.1917.]
Owners: (ca.1917-  ?  ), Rescue Coal Company, Pittsburgh, PA
Web sites on the Miller Mine, Bruceton, Jefferson Twp., Allegheny Co., PA:
    Coal Miners Memorial Miller Mine, Bruceton, Jefferson Twp., Allegheny Co., PA

Miller Mine (ca.1923-  ?  ), located north of Turtle Creek, near Linhart, Patton Twp., Allegheny Co., PA
Owners: (ca.1923-  ?  ), Miller Brothers Company,

Miller's Run Coal Company, Hamilton Building, Pittsburgh, PA
See: Morgan Mine, Allegheny Co., PA

Millers Grove, Option P.O., Baldwin Twp., Alegheny Co., PA
[Located on the Baltimore & Ohio Railroad, Wheeling Division.]
See:

Millers Grove Station, Bladwin Twp., Allegheny Co., PA
[Located on the Baltimore & Ohio Railroad, Wheeling Division.]
See:

Millerstown, Fawn Twp., Allegheny Co., PA
See:

Milltown (Haffey P.O.), Penn Twp., Alegheny Co., PA
[Located on the Plum Creek Branch of the Pennsylvania Railroad and the Bessemer & Lake Erie Railroad.]
See:

Mine No. 1 (ca.1920-  ?  ), located in Findley Twp., Allegheny Co., PA
See: Montour & Lake Erie Mine No. 1, Allegheny Co., PA

Mine No. 2
(Country Bank Mine) (ca.1923-  ?  ), located 1/2 mile SE. of  where the Pennsylvania Railroad tracks cross over the ravine at Edgewood, Braddock Twp., Allegheny Co., PA
Owners: (ca.1923-   ?  ), George E. dash & Sons Company,

Mine No. 4 (ca.1923-  ?  ), located 1 mile NE. of Broughton, Snowden Twp., Allegheny Co., PA
Owners: (ca.1923-  ?  ), Pittsburgh Cannel Coal Company,

Mine No. 4
(Pittsburgh Terminal No. 4 Mine)
(D Mine) (ca.1904-  ?  ), located on the West Side Belt Railroad, Broughton, Allegheny Co., PA
Owners: (ca.1904-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1919-  ?  ), Pittsburgh Terminal Railroad & Coal Company,  Pittsburgh, PA
              (ca.1920-  ?  ), Pittsburgh Terminal Railroad & Coal Company,  Pittsburgh, PA
              (ca.1923-  ?  ), Pittsburgh Terminal Coal Company, Pittsburgh, PA
Web sites on the Mine No. 4; (Pittsburgh Terminal No. 4 Mine); (D. Mine), Broughton, Allegheny Co., PA:
   Coal Miners Memorial Mine No. 4; (Pittsburgh Terminal No. 4 Mine); (D. Mine), Broughton, Allegheny Co., PA

Mine No. 6
(Pittsburgh Terminal No. 6 Mine) (ca.1923-  ?  ), located at Bruceton, Allegheny Co., PA
Owners: (ca.1923-  ?  ), Pittsburgh Terminal Coal Company,

Mine No. 7
(Pittsburgh Terminal No. 7 Mine) (ca.1923-  ?  ), located at Large, Allegheny Co., PA
Owners: (ca.1923-  ?  ), Pittsburgh Terminal Coal Company,

Mingo Gas Coal Company, Braddock, PA
See: Courtney Mine, Courtney, Washingtron Co., PA

Mollenaur Mine
(Pittsburgh Terminal No. 3 Mine)
("C" Mine)
See: Pittsburgh Terminal No. 3 Mine, Allegheny Co., PA

Monarch Mine
(Rural Ridge Mine) (ca.1922-1950's), located on the Bessemer & Lake Erie Railroad, at Rural Ridge, Indiana Twp., Allegheny Co., PA
Owners: (ca.1922-1925 ?), Saxman & Sons Company,
              (ca.1925 ? -1940's), Monarch Fuel Company,
              (ca.1940's-1950's), Duquesne Light Company, Pittsburgh, PA 

Mon-Yough Coal Company,
See: McClure Mine, Allegheny Co., PA
       McClure No. 2 Mine, Allegheny Co., PA
       McClure No. 3 Mine, Allegheny Co., PA 
       Mon-Yough No. 2 Mine (ca.1924-  ?  ), Allegheny Co., PA
       Mon-Yough No. 3 Mine (ca.1924-  ?  ), Allegheny Co., PA

Mon-Yough No. 2 Mine (ca.1924-  ?  ), located in Allegheny Co., PA
Owners: (ca.1924-  ?   ), Mon-Yough Coal Company,

Mon-Yough No. 3 Mine (ca.1924-  ?  ), located in Allegheny Co., PA
Owners: (ca.1924-  ?   ), Mon-Yough Coal Company,

Mongah Mine (ca.1898-  ?  ), located on the Monongahela Division of the P. & L. E. Railroad, Monongahela, Allegheny Co., PA
Owners: (ca.1898-  ?  ), W. H. Brown Sons Company, Monongahela, PA
              (ca.1903-  ?  ), Monongahela River Consolidated Coal & Coke Company, Pittsburgh, PA
              (ca.1904-  ?  ),  ?
              (ca.1905-  ?  ), Monongahela River Consolidated Coal & Coke Company, Pittsburgh, PA
              (ca.1906-  ?  ), Monongahela River Consolidated Coal & Coke Company, Pittsburgh, PA
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1919-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Mongah Mine, Monongahela, Allegheny Co., PA:
   Coal Miners Memorial Mongah Mine, Monongahela, Allegheny Co., PA

Monongahela River Consolidated Coal & Coke Company, Pittsburgh, PA
See:  Allequippa Mine, Allegheny Co., PA
        Abe Hays Mine, Washington Co., PA
        Albany Mine, Fayette Co., PA
        Alice Mine, Fayette Co., PA
        Amity Mine, Allegheny Co., PA
        Anchor Mine, Fayette Co., PA
        Apollo Mine, Fayette Co., PA
        Beaumont Mine, Washington Co., PA
        Beck's Run Mine, Allegheny Co., PA
        Belle Bridge, Allegheny Co., PA
        Black Diamond Mine, Washington Co., PA
        Browns No. 1 Mine, Allegheny Co., PA
        Browns No. 2 Mine, Allegheny Co., PA
        Bunola Mine, Allegheny Co., PA
        Bunola No. 1 Mine, Bunola, Allegheny Co., PA
        Bunola No. 2 Mine, Bunola, Allegheny Co., PA
        Caledonia Mine, Washington Co., PA
        Camden Mine, Allegheny Co., PA
        Catsburg Mine, Washington Co., PA
        Champion Mine, Washington Co., PA
        Chamouni Mine, Fayette Co., PA
        Christinia Mine, Allegheny Co., PA
        Cincinnati Mine, Washington Co., PA
        Climax Mine, Fayette Co., PA
        Clipper Mine, Washington Co., PA
        Coal Bluff Mine, Washington Co., PA
        Crescent Mine, Washington Co., PA
        Crowthers Mine, Fayette Co., PA
        Eclipse Mine, Washington Co., PA
        Eclipse (River) Mine, Washington Co., PA
        Fayette City Mine, Fayette Co., PA
        Fox Mine, Washington Co., PA   
        Gallatin Mine, Allegheny Co., PA
        Gospel Mine, Allegheny Co., PA
        Hilldale Mine, Washington Co., PA
        Horner & Roberts Mine, Allegheny Co., PA
        Ivill Mine, Washington Co., PA
        Knob Mine, Washington Co., PA
        Little Alps Mine, Fayette Co., PA
        Little Redstone Mine, Fayette Co., PA
        Lovedale Mine, Allegheny Co., PA
        Milesville Mine, Allegheny Co., PA
        Mongah Mine, Allegheny Co., PA
        New Eagle Mine, Washington Co., PA
        Old Eagle Mine, Alegheny Co., PA
        Pine Run Mine, Allegheny Co., PA
        Rachel Mine, Allegheny Co., PA
        Risher Mine, Allegheny Co., PA
        Riverview Mine, Washington Co., PA
        Rock Run Mine, Allegheny Co., PA
        Rostraver Mine, Westmoreland Co., PA
        Six Mile Ferry Mine, Allegheny Co., PA
        Snow Hill Mine, Fayette Co., PA
        Stony Hill Mine, Fayette Co., PA
        Sunny Side Mine, Allegheny Co., PA
        Tremont Mine, Fayette Co., PA
        Umpire, Fayette Co., PA
        Vigilant Mine, Washington Co., PA
        Walton Mine, Allegheny Co., PA
        Walton No. 2 Mine, Allegheny Co., PA
        Walton 2nd Pool Mine, Allegheny Co., PA
        Washington Mine, Fayette Co., PA
        Yough No. 1 Mine, Allegheny Co., PA
        Yough No. 2 Mine, Allegheny Co., PA

Monongahale Station, Allegheny Co., PA
See: Clinton Mine, Monongahale Station, Allegheny Co., PA

Monown Mine (ca.1903- ? ), located in Allegheny Co., PA
See: Manown Mine, Allegheny Co., PA

Monroeville, Patton Twp., Allegheny Co., PA
See: C. B. Yothers Company, Monroeville, PA
       Grimm Mine, Monroeville, Patton Twp., Allegheny Co., PA
       Herold & Bowers Wagon Mine, Monroeville, Patton Twp., Allegheny Co., PA
       Yothers Mine, Monroeville, Allegheny Co., PA

Monterey, Baldwin Twp., Allegheny Co., PA
See:

Montoothe Coal Company, Homestead, Pa
See: Risher No. 2 Mine, Alegheny Co., PA

Montour & Lake Erie Coal Company, Pittsburgh, PA
See: Montour & Lake Erie Mine No. 1, Allegheny Co., PA

Montour & Lake Erie Mine No. 1 (ca.1916-  ?  ), located in the M. & L. E. Railroad, Midway, Findley Twp., Allegheny Co., PA
Owners: (ca.1916-   ?  ), Montour & Lake Erie Coal Company, Pittsburgh, PA
              (ca.1917-   ?  ), Montour & Lake Erie Coal Company, Pittsburgh, PA
              (ca.1920-   ?  ), Montour & Lake Erie Coal Company, Pittsburgh, PA
Web sites on the Montour & Lake Erie Mine No. 1 Mine, Midway, Findley Twp., Allegheny Co., PA:
    Coal Miners Memorial Montour & Lake Erie No. 1 Mine, Midway, Findley Twp., Allegheny Co., PA

Montour No. 4 Mine,
(Montour No. 4 Mine was located in Washington County, PA)

Montour No. 8 Mine (ca.1917- ? ), located in the Valley of Lewis Run, 2 miles east of Bruceton, Jefferson Twp., Allegheny Co., PA
Owners: (ca.1917-   ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1919-   ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1923-   ?  ), Pittsburgh Coal Company, Pitsburgh, PA 
              (ca.1925-   ?  ), Pittsburgh Coal Company, Pittsburgh, PA 
Web sites on the Montour No. 8 Mine, Bruceton, Jefferson Twp., Allegheny Co., PA:
   Coal Miners Memorial Montour No. 8 Mine, Bruceton, Jefferson Twp., Allegheny Co., PA

Montour No. 9 Mine,
(Montour No.9 Mine was located in Washington County, PA)

Montour No. 10 Mine
(Lick Run Mine) (ca.1919- ? ), located in Allegheny Co., PA
[Montour No. 10 Mine was formerly called Lick Run Mine.]
Owners: (ca.1919-   ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1949-   ?  ), Pittsburgh Coal Company, Pittsburgh, PA

Montours Mine
(Imperial Mine) (ca.1878- ? ), located on the Montours Run Railway, Imperial, North Fayette Twp., Allegheny Co., PA
Owners: (ca.1878-  ?  ), Imperial Coal Company, Imperial, PA
              (ca.1889-  ?  ), Imperial Coal Company, Imperial, PA
              (ca.1892-  ?  ), Imperial Coal Company, Imperial, PA
              (ca.1898-  ?  ), Imperial Coal Company, Imperial, PA
Web sites on the Montours Mine, Imperial, North Fayette Twp., Allegheny Co., PA:
   Coal Miners Memorial Montours Mine (Imperial Mine), Imperial, North Fayette Twp., Allegheny Co., PA

Moon Run, Robinson Twp., Allegheny Co., PA
[Located on the Pittsburgh & Moon Run Railroad.]
See: Moon Run Coal Company, Moon Run, PA
        Moon Run Mine, Moon Run, Robinson Twp., Allegheny Co., PA
        Moon Run No. 1 Mine, Moon Run, Robinson Twp., Allegheny Co., PA
        Moon Run No. 2 Mine, Moon Run, Robinson Twp., Allegheny Co., PA
        Moon Run No. 3 Mine, Moon Run, Robinson Twp., Allegheny Co., PA

Moon Run Coal Company, Moon Run, PA
See: Moon Run Mine, Moon Run, Robinson Twp., Allegheny Co., PA

Moon Run Mine (ca.1892- ? ), located on the Pittsburgh & Moon Run Railroad, later it was the Monongahela River Railroad, later the railroad was the P. & L. E. Railroad, Moon Run, Robinson Twp., Allegheny Co., PA
Owners: (ca.1892-  ?  ), Moon Run Coal Company, Moon Run, PA
              (ca.1898-  ?  ), Moon Run Coal Company, Moon Run, PA
              (ca.1900-  ?  ), Pittsburg Coal Company, Pittsburg, PA    
              (ca.1903-  ?  ), Pittsburg Coal Company, Pittsburg, PA
              (ca.1920-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Moon Run Mine, Moon Run, Robinson Twp., Allegheny Co., PA:
    History of the Moon Run Mines, Moon Run, Robinson Twp., Allegheny Co., PA
    Coal Miners Memorial Moon Run Mine, Moon Run, Robinson Twp., Allegheny Co., PA

Moon Run No. 1 Mine (ca.1905-  ?  ), located on the Pittsburg & Moon Run Railroad, later the Montour Railroad, Moon Run, Robinson Twp., Allegheny Co., PA
Owners: (ca.1905-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1917-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Moon Run No. 1 Mine, Moon Run, Robinson Twp., Allegheny Co., PA:
    History of the Moon Run Mines, Moon Run, Robinson Twp., Allegheny Co., PA
    Coal Miners Memorial Moon Run No. 1 Mine, Moon Run, Robinson Twp., , Allegheny Co., PA

Moon Run No. 2 Mine (ca.1905-  ?  ), located on the Pittsburg & Moon Run Railroad, later the Montour Railroad, Moon Run, Robinson Twp., Allegheny Co., PA
Owners: (ca.1905-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
              (ca.1917-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Moon Run No. 2 Mine, Moon Run, Robinson Twp., Allegheny Co., PA:
    History of the Moon Run Mines, Moon Run, Robinson Twp., Allegheny Co., PA
    Coal Miners Memorial Moon Run No. 2 Mine, Moon Run, Robinson Twp., Allegheny Co., PA

Moon Run No. 3 Mine (ca.1905-  ?  ), located on the Pittsburg & Moon Run Railroad, Moon Run, Robinson Twp., Allegheny Co., PA
Owners: (ca.1905-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1916-  ?  ), Pittsburgh Coal Company, Pittsburgh, PA
Web sites on the Moon Run No. 3 Mine, Moon Run, Robinson Twp., Allegheny Co., PA:
    History of the Moon Run Mines, Moon Run, Robinson Twp., Allegheny Co., PA
    Coal Miners Memorial Moon Run No. 3 Mine, Moon Run, Robinson Twp., Allegheny Co., PA

Moore Coal Company, Glassmere, PA
See: Moore Mine, Fayette Co., PA

Moorhead, Upper St. Clair Twp., Allegheny Co., PA
See:

Moramina Wagon Mine (ca.1884-  ?  ), located 3/4 mile south of Universal, Penn Twp., Allegheny Co., PA
Owners: (ca.1884-  ? ),   ?

Moreland Coke & Coal Company, Duquesne, PA
See: Bulls Run Mine, Duquesne, Allegheny Co., PA

Morgan, Moore & Baine Company, Imperial, PA
See: Margerum Mine, Allegheny Co., PA

Morgan, South Fayette Twp., Allegheny Co., PA
See: Blyth Mine, Morgan, South Fayette Twp., Allegheny Co., PA
        National Mining Company, Morgan, PA
        National No. 1 Mine, Morgan, Allegheny Co., PA
        Vulcan Coal Company, Morgan, PA

Morgan Mine (ca.1892- ? ), located on the P. C. C. & St. L. Railroad, B. & M. Branch, Hazelwood, Gradatim P.O., Gladden, South Fayette Twp., Allegheny Co., PA
Owners: (ca.1892-  ?  ), Miller's Run Coal Company, Hamilton Building, Pittsburgh, PA
              (ca.1898-  ?  ),    ?
              (ca.1903-  ?  ), Pittsburg Coal Company, Pittsburg, PA 
              (ca.1905-  ?  ), Pittsburg Coal Company, Pittsburgh, PA
              (ca.1923-  ?  ), Schenley Coal Company,
Web sites on the Morgan Mine, Gradatim P.O., Gladden, South Fayette Twp., Allegheny Co., PA:
   Coal Miners Memorial Morgan Mine, Gradatim P.O., Gladden, South Fayette Twp., Allegheny Co., PA

Morris & Bailey Coal Company, Pittsburg, PA
See: Peters Creek Mine, Coal Valley, Allegheny Co., PA

Morris McCue Company, Third Avenue & Fry Street, Pittsburgh, PA
See: Cherry Mine, Allegheny Co., PA

Morrow Company,
See: Morrow Mine, Sandy  Creek, Penn Twp., Allegheny Co., PA
See also:  H. S. Morrow Company,

Morrow Mine (ca.1923-  ?  ), located at Sandy Creek, Penn Twp., Allegheny Co., PA
Owners: (ca.1923-  ?  ), H. S. Morrow Company,

Mount Oliver Coal & Stone Company, Pittsburg, PA
See: Rankin Mine, Pittsburg, Allegheny Co., PA

Mrs. S. C. Snodgrass Company, Camden, PA
See: Rock Run Mine, Allegheny Co., PA

Mt. Royal, Shaler Twp., Allegheny Co., PA
[Located on the Pittsburg & Chicago Line of the Baltimore & Ohio Railroad.]
See:

Mucklerat Mine
(Duquesne Mine)(ca. ?   ), located at Swissvale, Edgewood Park P.O., Allegheny Co., PA, U.S.A.
See: Duquesne Mine (Mucklerat Mine), Swissvale, Edgewood Park P.O., Allegheny Co., PA, U.S.A.

Muir & Harper Coal Company, Turtle Creek, PA
See: Muir & Harper Mine, Allegheny Co., PA

Muir & Harper Mine (ca.1920-  ? ), located in Allegheny Co., PA
Owners: (ca.1920-  ?  ), Muir & Harper Coal Company, Turtle Creek, PA

Munhall Brothers Company, Munhall, Pa
See: Bellwood Mine, Allegheny Co., PA

Muse Coal Company, Buena Vista, PA
See: Muse Mine, Buena Vista, Allegheny Co., PA

Muse Mine (ca.1917-  ?  ), a local trade wagon mine, located near Buena Vista, Allegheny Co., PA
[Muse Mine was listed as a new mine ca.1917.]
Owners: (ca.1917-  ?  ), Muse Coal Company, Buena Vista, PA

Mustard, Elizabeth Twp., Allegheny Co., PA
[A coal company patch town in Elizabeth Twp., Allegheny Co., Pennsylvania.]
See: Mustard Mine, Mustard, Elizabeth Twp., Alleghent Co., PA

Mustard Mine (ca.     ?    ), located just west of Smithdale, Mustard, Elizabeth Twp., Allegheny Co., PA
Owners: (ca.    ?    ),  ?

Myers Coal Company, McKeesport, Pa
See: Myers Mine, Allegheny Co., PA
       Osceola Mine, Allegheny Co., PA
See also: H. J. Myers Coal Company, McKeesport, PA

Myers Mine (ca.1917-  ?  ), a local trade wagon mine located at Emblem, Allegheny Co., PA
Owners: (ca.1917-  ?  ), H. J. Myers Company, McKeesport, PA
              (ca.1920-  ?  ), H. J. Myers Coal Company, McKeesport, PA
              (ca.1923-  ?  ), H. J. Myers Company, McKeesport, PA 
              (ca.1925-  ?  ), Myers Coal Company, McKeesport, PA

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