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Clark and Madeira Family Papers, 1820-1942 (inclusive) 1850-1925 (bulk)
Held at: University of Pennsylvania: University Archives and Records Center [Contact Us]
Held at: University of Pennsylvania: University Archives and Records Center [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]
Held at: Princeton University Library: Manuscripts Division [Contact Us]