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United Singers of Philadelphia records, 1887-1932 (inclusive)
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [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: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]
Held at: German Society of Pennsylvania: Joseph P. Horner Memorial Library [Contact Us]