S/Sgt Harold J. Kelsen flew 13 missions, from 11/26/1943, mission #1, to 05/28/1944, mission #77. He served as a Left Waist Gunner and Right Waist Gunner.
S/Sgt Kelsen served with the following crewman: T/Sgt Bert B. Besselieu, 2nd Lt Charles W. Bryant, S/Sgt William D. Cohen, Sgt James A. Drain, 2nd Lt Carl T. Floto Jr., 2nd Lt Wardlaw M. Hammond, 1st Lt Walter B. Keith, S/Sgt Robert V. Kerr, 2nd Lt John B. King, T/Sgt Benjamin Z. Musser, T/Sgt Clement W. Novak, M/Sgt Harold K. Older, 2nd Lt Robert W. Rowe and Sgt John J. Sederis