National Museum of Nuclear Science & History
Frank Osvath was a staff worker at Los Alamos during the Manhattan Project.
D. N. Kelly worked for the J.A. Jones Construction Company.
J. D. Brown worked for the Watson-Flagg Engineering Company.
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gosline worked at the 200 West Area at Hanford during the Manhattan Project.