She worked on many of Ernst Lubitsch's films and was considered one of the foremost editors of her day.
She came from a big family, and many of her siblings became involved with the film industry after they all moved to Los Angeles.
Brother Oliver became a cinematographer, and sisters Mildred, Mae, Leslie, and Marguerite became actresses.
[3] Frances started out as a script clerk around 1925 before making a name for herself as a film editor.
[1] "I have often cried right there in the cutting room while editing a particularly romantic or sentimental scene," Marsh later told a reporter.