The couple purchased a home in Beverly Hills in 1951, where they resided for the rest of their lives. They also owned the Winecup Gamble Ranch in Nevada from 1953 to 1957. Stewart adopted Gloria's two sons, Ronald (1944–1969) and Michael (born 1946), and with Gloria, he had twin daughters, Judy and Kelly, on May 7, 1951. Ronald was killed in action in Vietnam on June 8, 1969, at the age of 24, while serving as a lieutenant in the Marine Corps.