National Museum of Nuclear Science & History
Harold Koch was an electrical engineer at Oak Ridge, Tennessee during the Manhattan Project.
Christiansen worked at the 100-B Area at Hanford during the Manhattan Project.
Roswell Pooler served in the Army at Los Alamos during the Manhattan Project.
Burr H. Ritter was a chemical engineer at the Hooker Chemical Company in Niagara Falls, New York during the Manhattan Project.