National Museum of Nuclear Science & History
M. G. Sonner worked for the J.A. Jones Construction Company.
Joseph McNaught served in the 603rd Air Engineering Squadron.
Cronholm worked at the 100-F Area at Hanford during the Manhattan Project.
Wilam Spangler was a staff worker at Los Alamos during the Manhattan Project.
Petersen worked in the 200 West Area at Hanford during the Manhattan Project.
