Under President Franklin D. Roosevelt, the Aeronautics Branch cooperated with public works agencies on projects that represented an early form of federal aid to airports. The Branch was restructured and in 1934 received a new name, the Bureau of Air Commerce. Eugene Vidal, nephew of Senator Thomas Gore became its first director. Vidal resigned on February 28, 1937, and was replaced by Fred D. Fagg, Jr.. Fagg reorganized the bureau, but retired in April 1938, being replaced by "Hindenburg" crash investigator Denis Mulligan.