National Museum of Nuclear Science & History
Ruth Langley worked for the United States Engineer District Office.
Omar E. Napier served in the 1st Ordnance Squadron.
R.J. Stepheson was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
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.
