National Museum of Nuclear Science & History
Sievers worked at the 300 Area at Hanford during the Manhattan Project.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
John Gleneski served in the 320th Troop Carrier Squadron.
Harding worked at the 300 Area at Hanford during the Manhattan Project.
