Gareth Methvin played with the USA baseball team at the 1956 Olympic demonstration game. At the time he was a 20-year-old graduate of Arcadia High School. He was then in the US Air Force, stationed with the 6921st Radio Group Mobile in Japan. Methvin served his country in the United States Air Force in Japan during the Korean Conflict. He later worked as a salesman and in marketing for IBM and Xerox, as well as a regional sales manager for Boston Whaler Boats. After retirement, Methvin lived for several years in Pennsylvania, where he worked in a call center for Medicare.