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Mather family papers, 1830-1920 (inclusive)
Held at: Old York Road Historical Society [Contact Us]
Held at: Old York Road Historical Society [Contact Us]
Held at: Perkasie Historical Society [Contact Us]
Held at: Conshohocken Historical Society [Contact Us]
Held at: Craven Hall Historical Society [Contact Us]
Held at: Downingtown Area Historical Society [Contact Us]
Held at: Delaware County Historical Society [Contact Us]
Held at: Delaware County Institute of Science [Contact Us]
Held at: Friends of Northeast Philadelphia History [Contact Us]
Held at: Germantown Historical Society [Contact Us]
Held at: Historic Fallsington, Inc. [Contact Us]