Gerhart, Emmanuel Vogel (1817-1904), Ms. Coll. 001. E&R Library & Archives.
Gerhart, Emmanuel Vogel (1817-1904), Ms. Coll. 001. E&R Library & Archives. https://erhistoricalsociety.libraryhost.com/repositories/2/resources/3216 Accessed July 27, 2025.
