Kelker, Rudolph F. (1820-1906), Ms. Coll. 337. E&R Library & Archives.
Kelker, Rudolph F. (1820-1906), Ms. Coll. 337. E&R Library & Archives. https://erhistoricalsociety.libraryhost.com/repositories/2/resources/3545 Accessed July 27, 2025.
