National Museum of Nuclear Science & History
Ed Zeigler worked for the United States Engineer District Office.
George L. Brabenec was a master sergeant in the 393rd Bombardment Squadron. He served as the flight engineer of the Necessary Evil, but flew in the Big Stink during the Nagasaki mission.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Bobby J. Chapman served as a captain in the 393rd Bombardment Squadron. He was the regularly assigned bombardier for the Big Stink, and he and his crew were later reassigned to Luke the Spook.
W. T. Yates worked for the Roane-Anderson Company.
