National Museum of Nuclear Science & History
Henson worked at the 300 Area at Hanford during the Manhattan Project.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Sappenfield worked at the 300 Area at Hanford during the Manhattan Project.
John Zuidema worked for the Tennessee Eastman Corporation at the Y-12 Plant.
