National Museum of Nuclear Science & History
F. C. Ruh worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Henry worked at the 300 Area at Hanford during the Manhattan Project.
Sieck worked at the 200 East Area at Hanford during the Manhattan Project.
Carpenter worked at the 200 East 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.
