Ralph Joseph Keller was born April 10, 1918 to Peter J. and Christina (Dahners) Keller in Rose Township, Ramsey County, Minnesota. His father was a farmer in what later became Falcon Heights. Keller served in the Signal Corps during World War II at Camp Crowder, Missouri; Camp Charles Wood, Fort Monmouth, and Camp Edison, New Jersey; and in New Guinea and the Philippines. He was discharged in January 1946 at Fort McCoy, Wisconsin. Keller died March 28, 2011.
From the guide to the World War II correspondence., 1868-2009 (bulk 1943-1945)., (Minnesota Historical Society)