National Museum of Nuclear Science & History
Leandro Ortiz was a staff worker at Los Alamos during the Manhattan Project.
Johnson worked at the 100-F Area at Hanford during the Manhattan Project.
Geoghegan worked at the 300 Area at Hanford during the Manhattan Project.
Fred H. Greene was an engineer who worked on the K-25 Plant in Oak Ridge, TN, for Union Carbide and Carbon.
