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Dr. J. Elmer Porter family papers, 1870-1960 (bulk) 1829-1977 (inclusive)
Held at: Pottstown Historical Society [Contact Us]
Held at: Pottstown Historical Society [Contact Us]
Held at: Springfield Township Historical Society (Montgomery County, Pa.) [Contact Us]
Held at: The Historical Society of Trappe, Collegeville, Perkiomen Valley [Contact Us]
Held at: Doylestown Historical Society [Contact Us]
Held at: Goschenhoppen Historians, Inc. [Contact Us]
Held at: Historical Society of Montgomery County [Contact Us]
Held at: Historical Society of the Phoenixville Area [Contact Us]
Held at: Limerick Township Historical Society [Contact Us]
Held at: Old York Road Historical Society [Contact Us]
Held at: Springfield Township Historical Society (Montgomery County, Pa.) [Contact Us]