Dotterer, Henry Sassaman (1841-1903), Ms. Coll. 061. E&R Library & Archives.
Dotterer, Henry Sassaman (1841-1903), Ms. Coll. 061. E&R Library & Archives. https://erhistoricalsociety.libraryhost.com/repositories/2/resources/3271 Accessed July 27, 2025.
