National Museum of Nuclear Science & History
H. F. Koch worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Kelleher was a Sergeant who worked at Hanford during the Manhattan Project.
Forrest H. Murray was a research associate in the Theoretical Group and a mathematician at the University of Chicago Met Lab.