National Museum of Nuclear Science & History
Jas Penny, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Attanas was born in 1920 and grew up on farm near Kingston, New York. After graduating from Georgia Tech in 1942 with a degree in chemical engineering, he worked in a chemistry lab at the Remington Arms Company.
Gentry worked in the United States Engineer District Office.
William T. Kelley was drafted in 1942 into the Army and was assigned to the Corps of Engineers’ Manhattan District as part of the counterintelligence element of the project.