Sgt John E. Grenillion flew 28 missions, from 09/10/1944, mission #141, to 02/23/1945, mission #213. He served as a Ball Turret Gunner.
Sgt Grenillion served with the following crewman: 2nd Lt Raymond J. Callahan, S/Sgt Richard W. Carr, 2nd Lt Eldon R. Child, 1st Lt Allan L. Cone, 2nd Lt Hall T. Connell Sr., S/Sgt Thomas Davis Jr., T/Sgt Billie D. Delong, 2nd Lt Maurice Dunigan, S/Sgt Cyraque J. Dupuis, S/Sgt James W. Foutch, S/Sgt Lewis O. Geiger, 1st Lt Robert S. Jones Jr., T/Sgt Joseph J. Kozyra, T/Sgt Marvin Luchfeld, 1st Lt M.L. More, Sgt Peter J. Osborne, S/Sgt Chestar C. Peltz, S/Sgt Melvin L. Roberts, 1st Lt John W. Sinkking, Flt O Philip B. Steiman Jr., Sgt Edward F. Swatski, Capt Laurel A. Turk, Cpl Murray N. Vecchio, S/Sgt A.J. Vigona, 2nd Lt Donald L. Voltz, Sgt Charles A. Ward, S/Sgt Bernard D. Weinstein and S/Sgt Simon Wieselthier