1st Lt John E. Kollar flew 42 missions, from 11/09/1944, mission #169, to 03/19/1945, mission #232. He served as a Bombardier and Navigator.
1st Lt Kollar served with the following crewman: Sgt Marvin L. Backus, Sgt Frank W. Bailey, Flt O Lafanre L. Berneburg, T/Sgt Richard D. Black, S/Sgt Wilbur E. Bush, Sgt Wilson H. Carmichael, T/Sgt Buford D. Chance, 2nd Lt Eugene B. Colliss, Sgt Charles B. Dick, T/Sgt Hugh R. Ferguson, Sgt James Fogleman, 2nd Lt Phillip B. Funk, 1st Lt Thurman M. Geren, T/Sgt Joseph Gianinni, Sgt James A. Hardaway, S/Sgt James J. Harlen, S/Sgt William Q. Harty, 1st Lt Richard C. Houston, S/Sgt Thomas E. Howell, Sgt John W. Hudson, Sgt James W. Key Jr., S/Sgt Leon A. McCrary, 1st Lt Richard R. Scheller, S/Sgt Norman A. Severson, S/Sgt William C. Sitton, Cpl George Toombs, S/Sgt Russell M. Trudeau and 1st Lt Wallace W. Wicks