Helmbold, Andrew K. (1915-1993), Ms. Coll. 292. E&R Library & Archives.
Helmbold, Andrew K. (1915-1993), Ms. Coll. 292. E&R Library & Archives. https://erhistoricalsociety.libraryhost.com/repositories/2/resources/3504 Accessed July 29, 2025.
