- His marriage was announced in _The Evening Standard_ of New Rochelle on 25 April 1916. It stated his soon-to-be-wife was a vaudeville headliner.
- Opened up a bar/restaurant in Los Angeles after retiring from acting.
- Older brother of Oscar-winning assistant director Jack Sullivan and grandfather of award-winning show-runner and creator Beth Sullivan.
- Married vaudeville star and operatic singer Elizabeth "Maude" Cooper. Together they had one son, George.
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