National Museum of Nuclear Science & History
S. D. Tatalovich worked for the United States Engineer District Office.
John O. Chatt served in the 509th Headquarters and Base Services Squadron.
N. B. Newcomb worked for the Kellex Corporation at the K-25 Plant.
Dwight Young (1892-1975) was a professional photographer working at a box factory when he heard about an opening at the University of Chicago’s Metallurgical Laboratory.