Maxwell married three times; each ended in divorce. In September 1944, she married actor John Conte; the relationship was dissolved in June 1946. Her second marriage, to restaurateur Anders McIntyre, lasted just over a year, from January 1, 1950 until March 23, 1951. Maxwell's six-year marriage to writer/producer Jerry Davis ended in 1960. Her only child, Matthew, was born to Maxwell and Davis in 1956.