National Museum of Nuclear Science & History
Betsy Schneider was a staff worker at Los Alamos during the Manhattan Project.
Irvin Mastin worked for the J.A. Jones Construction Company.
Kathleen “Kay” (Gavin) Florin was a clerk in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Homer W. Ibser was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. J. Rockstron worked for the United States Engineer District Office.
