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Constantine Hering and Calvin B. Knerr family papers, 1820-1940 (bulk) 1820-2003 (inclusive)
Held at: Drexel University: College of Medicine Legacy 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: Bryn Mawr College [Contact Us]
Held at: Bryn Mawr College [Contact Us]
Held at: Bryn Mawr College [Contact Us]
Held at: Bryn Mawr College [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Philadelphia Museum of Art Archives [Contact Us]
Held at: Philadelphia Museum of Art Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Philadelphia Area Consortium of Special Collections Libraries [Contact Us]
Held at: Chester County Historical Society [Contact Us]
Held at: Chester County Historical Society [Contact Us]
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: Library Company of Philadelphia [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: University of Pennsylvania: Archives at the Library of the Katz Center for Advanced Judaic Studies [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: Free Library of Philadelphia: Rare Book Department [Contact Us]
Held at: University of Pennsylvania: Barbara Bates Center for the Study of The History of Nursing [Contact Us]
Held at: University of Pennsylvania: Barbara Bates Center for the Study of The History of Nursing [Contact Us]
Held at: Drexel University: Archives and Special Collections [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: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [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: 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: University Archives and Records Center [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]