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Horace G. Richards papers, 1928-1984 (inclusive)
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Independence Seaport Museum, J. Welles Henderson Archives and Library [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Bryn Mawr College [Contact Us]