National Museum of Nuclear Science & History
Manning worked for Stone and Webster Engineering Corporation.
J. R. Stark worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gertrude Steel was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Cicilio Armijo served in the 603rd Air Engineering Squadron.
Morris S. Kaplan was a Chemical Engineer for the Houdaille-Hershey Company in Decatur, Illinois. Kaplan was born in Massachusetts in 1921 and grew up in Chicago, Illinois.
