National Museum of Nuclear Science & History
Walter Main worked for the United States Engineer District Office.
Philip C. Leahy was a Major in the United States Army. During World War II, he was placed in charge of establishing a domestic uranium procurement program for the Manhattan Project.
Walter R. Julek was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
T. A. Smith worked for the Tennessee Eastman Corporation at the Y-12 Plant.
