National Museum of Nuclear Science & History
Matheny worked in the 100 F Area at Hanford during the Manhattan Project.
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.
