Schaeffer, Charles E. (1867-1966), Ms. Coll. 007. E&R Library & Archives.
Schaeffer, Charles E. (1867-1966), Ms. Coll. 007. E&R Library & Archives. https://erhistoricalsociety.libraryhost.com/repositories/2/resources/3272 Accessed July 28, 2025.
