George E. Marshall Jr. (Sound Department) is his grandson.
Biography in: John Wakeman, editor. "World Film Directors, Volume One, 1890-1945". Pages 731-735. New York: The H.W. Wilson Company, 1987.
Children: Germaine Marshall and George Marshall Jr..
Father-in-law of actress Helene Marshall.
Father-in-law of assistant director Frank Baur.
He is one of the few directors to direct two versions of the same story, Destry Rides Again (1939) and Destry (1954). Only the 1939 version is a classic.
President of the Screen Directors Guild. [1948-1950]
Three days before his death he was inducted into the Academy of Motion Picture Arts and Sciences Hall of Fame.