National Museum of Nuclear Science & History
Grace Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Johnston worked at the 300 Area at Hanford during the Manhattan Project.
Luis Romero was a staff worker at Los Alamos during the Manhattan Project.
M. G. Mastin worked for the Fercleve Corporation.
John P. Bourre served in the 393rd Bombardment Squadron.