National Museum of Nuclear Science & History
Zen B. Portwood worked for the J.A. Jones Construction Company.
J. P. Alexander worked for the Kellex Corporation at the K-25 Plant.
Lulu Slaughter was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
D. W. Cardwell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. N. Diven worked at the 200 West Area at Hanford during the Manhattan Project.
