National Museum of Nuclear Science & History
A. M. Hartman worked for the Roane-Anderson Company.
Collins worked at the 300 Area at Hanford during the Manhattan Project.
John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. E. Shedden worked for the Tennessee Eastman Corporation at the Y-12 Plant.
