National Museum of Nuclear Science & History
Annie Powell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Hokanson worked at the 300 at Hanford during the Manhattan Project.
O'Brien worked for Stone and Webster Engineering Corporation.
