National Museum of Nuclear Science & History
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Joseph Mcguire was a chemist with the Special Engineering Detachment at the Y-12 Plant in Oak Ridge, Tennessee.
M. B. Dieson worked at the 300 Area at Hanford during the Manhattan Project.