Pascualy, Maria (Summer 2001). "A Witness to History: The Life and Times of Ralph Chaplin"(PDF). Columbia: The Magazine of Northwest History. Vol.15, no.2. Washington State Historical Society. Archived(PDF) from the original on February 5, 2026. Retrieved February 5, 2026.
Pascualy, Maria (Summer 2001). "A Witness to History: The Life and Times of Ralph Chaplin"(PDF). Columbia: The Magazine of Northwest History. Vol.15, no.2. Washington State Historical Society. Archived(PDF) from the original on February 5, 2026. Retrieved February 5, 2026.