William Langdon
Possible match — there are several people named William Langdon; this may not be the one in these credits.
American judge (1873-1939)
William Henry Langdon was an American banker, lawyer and politician who served as Associate Justice of the California Supreme Court from 1927 to 1939. He previously served as District Attorney of San Francisco during the San Francisco graft trials.
Filmography in the catalog
Credited on 16 films (1960–1977) — matched by name in the Creator or Credits field.