 Lindsey was also trained as a bombardier at Kirtland Field, New Mexico, and in 1943 was assigned to the 314th Bomb Squadron at MacDill Field, Florida, with the rank of first lieutenant.He was transferred to Kellogg Field, Michigan, in September 1943, and assigned to the 585th Bomb Squadron, 394th Bomb Group (Medium), a B-26 Marauder outfit.Promoted to captain in December, he was assigned as a flight commander.