Bryan Jennings Iams (1895-1956) and his wife Hilda Emma Wiese Iams (1896-1974) had two sons and a daughter. The younger son was Donald James Iams (1930-1996) but I don't believe he was ever in the military.
Robert Elton Iams (1925-2000) enlisted in the Navy in Jun 1943. He later married Shirley Ann Branton in 1953.
His rank in the Navy was Pharmacist's Mate, 1st Class.
Looks like he was called up for Korean War as well.
Enlistment Date 1: 21 Jun 1943
Release Date 1: 15 Jan 1947
Enlistment Date 2: 13 Sep 1950
Release Date 2: 7 Nov 1951