National Museum of Nuclear Science & History
H. J. Mack worked for the Edenfield Electric Company.
Nelson C. Baker was a lieutenant working as an executive officer to Captain Palmer in the Second Provisional Special Engineer Detachment at Los Alamos.
Janice E. Kingslow was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Horace Reeves worked for the J.A. Jones Construction Company.