After graduating from Loyola High School, Donald Sherlock attended Los Angeles City College with the career goal of becoming a dentist. While attending college, he also worked as a postal carrier, delivering mail to a route in Sherman Oaks. On his route, he met his future wife Joan as she was working in one of the offices that he delivered mail to. Don and Joan married in October of 1951 at Blessed Sacrament Catholic Church in Van Nuys.
Four weeks after the wedding in November 1951, Don was drafted into the US Army. He served the first year at Ford Ord (which interesting enough is the location of California State University, Monterey Bay). In November of 1952 (2 ½ months after the birth of his eldest son) he was sent overseas to Korea. He was stationed in Korea for a year. He was discharged as a Corporal and received the United Nations Award and the Korean Combat Medal for his time in the service. Don served as a medic during his time in the army.
The above photo shows Don at Ford Ord (in Seaside, California) in 1952.