Ground personnel of the 379th Bomb Group work on the engines of a B-17 Flying Fortress. Image stamped on reverse: 'Associated Press.' [stamp], 'Passed for publication 8 Jan 1944.' [stamp] and '299296.' [Censor no.] Printed caption on reverse: 'THEY KEEP 'EM FLYING. Associated Press Photo shows: Ground crew at work on one of the big bomber engines give it a periodical 100-hour check-up. The tents where they sleep in order to be near their "charges" can be seen in background. Left to right: M/Sgt. J.B. I. Sterling Jr., of Westernville NY, crew chief; Sgt. Louis Young of 329 North 2nd, Giradville, Pa; Cpl. Charles Kumpf, of 104 Hawley, Buffalo, NY and Cpl. Roy M. Kelly of 1229 South Karlev Ave, Chicago, Ill.'