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Constantine Hering and Calvin B. Knerr family papers, 1820-1940 (bulk) 1820-2003 (inclusive)
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Princeton University Library: Public Policy Papers [Contact Us]
Held at: Princeton University Library: Public Policy Papers [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: The Historical Society of Trappe, Collegeville, Perkiomen Valley [Contact Us]
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: African American Museum in Philadelphia [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]