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Mumbower family papers, 1927-1950 (inclusive)
Held at: Wissahickon Valley Watershed Association [Contact Us]
Held at: Wissahickon Valley Watershed Association [Contact Us]
Held at: Plymouth Meeting Historical Society [Contact Us]
Held at: Springfield Township Historical Society (Montgomery County, Pa.) [Contact Us]
Held at: Conshohocken Historical Society [Contact Us]
Held at: Conshohocken Historical Society [Contact Us]
Held at: Germantown Historical Society [Contact Us]
Held at: Historical Society of Fort Washington [Contact Us]
Held at: Historical Society of Montgomery County [Contact Us]
Held at: Historical Society of Montgomery County [Contact Us]
Held at: Historical Society of Montgomery County [Contact Us]