National Museum of Nuclear Science & History
Leslie Seward worked for the United States Engineer District Office.
Van Doubek, Jr. served in the 320th Troop Carrier Squadron.
John “Jack” Carleton Healey, a colonel in the U.S. Air Force, participated in the Manhattan Project as part of General Groves’ staff in Washington, DC.
John J. McManus served in the 603rd Air Engineering Squadron.
Smith worked at the 200 West Area at Hanford during the Manhattan Project.