National Museum of Nuclear Science & History
Jas Howard worked for the United States Engineer District Office.
Waldo F. Christy was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Jas Hart worked for the Comstock-Bryant Electric Company.
James S. Cole is an American engineer. He served as an airplane engineer during World War II, and began working at the K-25 plant at Oak Ridge, TN in 1945, shortly after the end of the war.