National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
R.J. Stepheson was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Owen Chamberlain (1920-2006) was an American physicist and winner of the 1959 Nobel Prize. He joined the Manhattan Project in 1942 after his graduate studies were interrupted by World War II.
W. D. Simms worked for the Tennessee Eastman Corporation at the Y-12 Plant.