Early in his career Walter Long was married to Luray Huntley, an actress for D.W. Griffith's stock company. Huntley and Long performed together in several of Griffith's films including Traffic in Souls (1913), Let Katie Do It (1916), and Intolerance: Love's Struggle Throughout the Ages (1916). They remained married until her death in 1918 at age 28 due to the Spanish influenza epidemic.

Child: John Huntley LongShaven-headed tough guy actor who appeared in many D.W. Griffith films (once notoriously as a Negro villain in The Birth of a Nation (1915), in blackface make-up),but is perhaps now best remembered as a scowling comic villain in several Stan Laurel and Oliver Hardy films.Served as Captain of the Military Police during World War II in Washington DC and Virginia.Died of a heart attack while watching the fireworks display at the Coliseum in Los Angeles, during the Fourth of July celebration.Despite his mean, tough-guy appearance on film, he was reported to be one of the warmest, nicest people in the business.