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H. A. Pilsbry papers, 1900-1953 (bulk) 1885-1957 (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: 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: Independence Seaport Museum, J. Welles Henderson Archives and Library [Contact Us]
Held at: Philadelphia Archdiocesan Historical Research Center [Contact Us]
Held at: Philadelphia Archdiocesan Historical Research Center [Contact Us]
Held at: Philadelphia Archdiocesan Historical Research Center [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Penn Museum Archives [Contact Us]
Held at: University of Pennsylvania: Archives at the Library of the Katz Center for Advanced Judaic Studies [Contact Us]
Held at: Free Library of Philadelphia: Children's Literature Research Collection [Contact Us]
Held at: Free Library of Philadelphia: Children's Literature Research Collection [Contact Us]
Held at: Free Library of Philadelphia: Children's Literature Research Collection [Contact Us]
Held at: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Free Library of Philadelphia: Children's Literature Research Collection [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: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: Lehigh University Special Collections [Contact Us]
Held at: University of Pennsylvania: Annenberg School for Communication Library Archives [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: Drexel University: College of Medicine Legacy Center [Contact Us]
Held at: John J. Wilcox, Jr. LGBT Archives, William Way LGBT Community Center [Contact Us]
Held at: Friends Historical Library of Swarthmore College [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]