Specifically he worked on assembling the inboard wing lower skins. He recalled an incident where all employees were gathered together outside to watch the maiden flight of the first plane that came off of the Wichita assembly line around June 1943. He watched the aircraft take off and fly north of Wichita and circle the city from east to west. As it returned for landing they observed a large amount of smoke streaming from one of the engines. All of the workers felt slightly embarrased by this event and they knew that many modifications were needed before the aircraft was ready for combat.
Eventually the employees were rewarded with good news on June 15, 1944 when they learned that their airplanes struck Yawata Japan led by commanding officer Col. Leonard F. Harman.
According to an article, The Noose Tightens, in the July 1944 Boeing Magazine: "The Superfortress raid brought into the open, for the first time, the general U.S. strategy for the destruction of Hirohito's empire. It was no coincidence that the attack came while Yank troops were storming the island of Saipan, in the Marianas, just 1500 miles south of Tokyo. Together, the two dramatic events make a picture very much like a noose being gradually tightened about the throat of Japan."
See photo above of the Wichita Plant II assemby line in 1944.