As of July 6th, APS offices are open to staff and invited visitors. The Society will remain closed to the public for at least the rest of the summer. Library & Museum staff now have access to our collections and will respond to reference and photoduplication requests as soon as possible. However, please note that response times may be delayed due to increased demand. The Society will continue a robust slate of virtual programs throughout the summer and fall. Read more about virtual programming and resources that can be accessed remotely. For further information on the APS reopening and its COVID response, please click here.

Associate Librarian and Curator of Manuscripts
man next to bust of Franklin

Charles Greifenstein is in charge of researcher services, the manuscript department, and security policies.  He has an MA in English from the University of Arizona and an MS in library science from Drexel University.  Prior to joining the APS in 2003, he was Associate Librarian and Curator of Manuscripts at the College of Physicians of Philadelphia.

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Charles Greifenstein
Charles Greifenstein
Charles Greifenstein
Charles Greifenstein
Charles Greifenstein
Charles Greifenstein
Charles Greifenstein