National Museum of Nuclear Science & History
Viola Vigil was a staff worker at Los Alamos during the Manhattan Project.
F. L. Casey worked for the J.A. Jones Construction Company.
Josephine Hinch was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lawrence Litz was a young physicist when he began working on radioactivity at the Metallurgical Laboratory at the University of Chicago.