|Born||David Delmar Watson
July 1, 1926
Los Angeles, California, U.S.
|Died||October 26, 2008
Glendale, California, U.S.
|Years active||1928–1947 (acting)|
|Spouse(s)||Antoinette Watson (2002–08; his death)|
He was one of nine children born to actor, stuntman, and pioneer special effects artist Coy Watson Sr. The family lived in the old Edendale area (now Echo Park) of Los Angeles. Delmar attended Belmont High School.
Delmar acted in Mr. Smith Goes to Washington alongside Jimmy Stewart and in Heidi with Shirley Temple. His eight siblings (five brothers and three sisters) also acted in films, including Coy Jr., Harry and Bobs. He and his brothers played the governor's sons in Mr. Smith Goes to Washington.  The family was honored by the Hollywood Chamber of Commerce by placing the Watson family ("the First Family of Hollywood") star on the Hollywood Walk of Fame, at 6674 Hollywood Boulevard in Hollywood.
Delmar Watson edited and published five books: "Quick, Watson, The Camera', 1976; Los Angeles The Olympic City, 1932-1984, 1984; The 10th Olympiad - Japan, 1984; Goin' Hollywood 1887-1987, 1988; Delmar Watson's "Babe", The One and Only, 1992.
- Nelson, Valerie J. "Delmar Watson, child actor turned news photographer, dies at 82", Los Angeles Times. October 28, 2008.
- Andres, Holly J. "Famed news photographer Delmar Watson dies." Daily News. October 28, 2008.
- Pool, Bob. "Star Shines Brightly for Hollywood's First Family; Movies: The Watson clan of former child actors finally receives recognition for its pioneering contribution to films." The Los Angeles Times. April 23, 1999. Metro Part B Metro Desk Page 1.