National Museum of Nuclear Science & History
Petty worked in the 100 B and D Areas at Hanford during the Manhattan Project.
Leroy Jackson was transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942.
T. I. Magill worked for the Tennessee Eastman Corporation at the Y-12 Plant.