National Museum of Nuclear Science & History
Gagen worked in the United States Engineer District Office.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Captain William Downey served as the Protestant chaplain for the 509th Composite Group and led the crew of the Enola Gay in prayer before they departed for Hiroshima.
John O. Barker served in the 320th Troop Carrier Squadron.
Ayres worked in the United States Engineer District Office.