National Museum of Nuclear Science & History
O. L. Koch worked for the Midwest Piping and Supply Company.
James S. Armstrong served in the 1027th Air Material Squadron.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Viola Vigil was a staff worker at Los Alamos during the Manhattan Project.
Warren worked at the 200 West Area at Hanford during the Manhattan Project.
