National Museum of Nuclear Science & History
J. J. Donovan worked for the H. K. Ferguson Company.
Reba Holmberg grew up in Robertsville, Tennessee, and experienced its claiming by the federal government for the Manhattan Project.
Harvey Matthioson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Johnston worked at the 300 Area at Hanford during the Manhattan Project.