Among other work, he wrote the intertitles for the final American studio-made silent film Legong: Dance of the Virgins (1935).

Del Ruth began working in film in 1913 and continued until the early 1930s.

He also wrote at least two novels: Port o' Heart's Desire (1926) and Without Restraint (1936).

He was the older brother of film director Roy Del Ruth and uncle of Cinematographer Thomas Del Ruth.

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