National Museum of Nuclear Science & History
Olsen worked in the 200 East Area at Hanford during the Manhattan Project.
Sotero Romero was a staff worker at Los Alamos during the Manhattan Project.
John G. Holmes, Jr. served in the 1st Ordnance Squadron.
Ruth Hillard was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
