Gold was married to singer Marni Nixon* (born in Califirnia,February
22, 1930) and is the father of singer Andrew Gold ("Lonely Boy" and
"Thank You For Being a Friend") and Therapist Martha Carr.

*Nixon's dubbing career includes:

The voices of the angels heard by Ingrid Bergman in Joan of Arc (1948)
The singing voice of Margaret O'Brien in The Secret Garden (1949)
Providing Marilyn Monroe with a few top notes in her performance of
"Diamonds Are a Girl's Best Friend" in Gentlemen Prefer Blondes'
(1953)
The singing voice for Deborah Kerr in the Rodgers & Hammerstein's The
King and I (1956) (on some tracks of the film, Kerr's and Nixon's
voices were skillfully intertwined)
The singing voice for Deborah Kerr in An Affair to Remember (1957)
The singing voice for Natalie Wood as Maria in West Side Story (1961)
and also sang some parts of the score of Anita played by Rita Moreno,
sharing the load with co-dubber Betty Wand and Moreno herself. In
parts of the song "Quintet", she sings both Maria and Anita's lines.
The singing voice for Audrey Hepburn as Eliza in My Fair Lady (1964),
for which Nixon gained much notoriety, as news-eager journalists
ripped apart the customary veil of secrecy. Industry buzz has said
this to have been the cause of Hepburn failing even to get nominated
for an Academy Award for the demanding role.**
Nixon appeared finally on screen singing for herself in the film The
Sound of Music as Sister Sophia