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United Singers of Philadelphia records, 1880-1926 (bulk) 1880-2006 (inclusive)
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]
Held at: Princeton University Library: Public Policy Papers [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]