National Museum of Nuclear Science & History
Grace Hulbert Wilson Groves is the wife of General Leslie R. Groves. The pair was married in 1922 and together they had two children, Richard and Gwen.
Joseph Mcguire was a chemist with the Special Engineering Detachment at the Y-12 Plant in Oak Ridge, Tennessee.
Hoferer worked at the 100-F Area at Hanford during the Manhattan Project.