National Museum of Nuclear Science & History
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.
Ralph Nelson was a staff worker at Los Alamos during the Manhattan Project.
Connie Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Estelle B. Lucas was a laboratory assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
