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Pennsylvania Horticultural Society records, 1791-2006 (inclusive)
Held at: Pennsylvania Horticultural Society [Contact Us]
Held at: Pennsylvania Horticultural Society [Contact Us]
Held at: Independence Seaport Museum, J. Welles Henderson Archives and Library [Contact Us]
Held at: Academy of Natural Sciences, Philadelphia [Contact Us]
Held at: Wagner Free Institute of Science [Contact Us]
Held at: Independence Seaport Museum, J. Welles Henderson Archives and Library [Contact Us]
Held at: Pennsylvania Horticultural Society [Contact Us]
Held at: Union League of Philadelphia [Contact Us]
Held at: Library Company of Philadelphia [Contact Us]