About Delbert Mann
Delbert Martin Mann Jr. was an American television and film director. He won the Academy Award for Best Director for the film Marty (1955), adapted from a 1953 teleplay which he had also directed. From 1967 to 1971, he was president of the Directors Guild of America. In 2002, he received the DGA's honorary life member award. Mann was credited to have "helped bring TV techniques to the film world." In 1949, at Coe's invitation, Mann joined him in New York, where he became a stage manager and assistant director at NBC.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.