National Museum of Nuclear Science & History
Frank Vaughan was a research associate at the Chicago Met Lab during the Manhattan Project.
Gerth worked in the United States Engineer District Office.
John Jackson was a member of the 393rd Bomber Squadron in the 509th Composite Group stationed in Wendover, Utah, and later on Tinian Island in the Pacific.
William Rubinson was a chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.