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Pennypack Ecological Restoration Trust records, 1971-2009 (inclusive)
Held at: Old York Road Historical Society [Contact Us]
Held at: Old York Road Historical Society [Contact Us]
Held at: Philadelphia History Museum [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Historical Society of Pennsylvania [Contact Us]
Held at: Library Company of Philadelphia [Contact Us]
Held at: Library Company of Philadelphia [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Historical Medical Library of The College of Physicians of Philadelphia [Contact Us]