National Museum of Nuclear Science & History
Joe W. Howland was a medical officer in charge of special problems in the US Army, stationed in Oak Ridge, Tennessee and Rochester, New York during the Manhattan Project.
Waldo E. Cohn was an American biochemist who worked in health physics and isotope separation during the Manhattan Project.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
Stanley Powers worked for the Tennessee Eastman Corporation at the Y-12 Plant.