Among his numerous other radio creations, with World War II and the Battle of Britain raging in Europe, between December 1939 and August 1940 Lord produced a radio show about aviators that opened with an interview of a real-life pilot recounting an exciting adventure in the air after which the show moved to a dramatization played by radio actors. From 1939 to 1952, he produced "Mr. District Attorney", a 30-minute crime show inspired by the real-life exploits of New York's racket-busting district attorney Thomas Dewey. The radio broadcast spawned a 1941 motion picture from Republic Pictures of the same name and a 1947 Columbia Pictures production. A comic book series, Mr. District Attorney, was published by DC Comics from 1948-1959.