National Museum of Nuclear Science & History
M. K. Walsh worked for the Roane-Anderson Company.
Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
N. B. Newcomb worked for the Kellex Corporation at the K-25 Plant.
Maguire worked in the 200 East Area at Hanford during the Manhattan Project.
