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Marvin Rosefield Keck papers, 1916-1920 (bulk) 1916-1972 (inclusive)
Held at: Independence Seaport Museum, J. Welles Henderson Archives and Library [Contact Us]
Held at: Independence Seaport Museum, J. Welles Henderson Archives and Library [Contact Us]
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]