Her father first worked for the Canadian postal department, then worked at an insurance agency, where he managed to gain enough money to send his youngest child (out of eleven children) to the Couvent Sacré-Coeur (Sacred Heart Convent) in Montreal, one of the most prestigious schools in the city.

Garon made her film debut in Remodeling Her Husband as a body double for Dorothy Gish.

Garon received much praise for her role in Henry King's adaptation of Sonny.

Garon played a bit part in How Green Was My Valley (1941) and appeared briefly in two westerns, Song of the Saddle (1936) and The Cowboy and the Blonde (1941).

[1] While filming The Average Woman in 1924 rumors began to spread that Garon had become engaged to Gene Sarazen, the professional golfer.

[1] Sherman's influence led Garon to refuse a long-term contract with Paramount.

[citation needed] In February 1940 she eloped with radio star and actor, Clyde Harland Alban, to Yuma, Arizona.

She married Ross Forrester, widower of actress Marion Aye, in May 1953 and remained with him until he died.

[citation needed] Garon died on August 30, 1965, at Patton State Hospital, a psychiatric institution in San Bernardino, California, ten days before her 65th birthday.