National Museum of Nuclear Science & History
Robert E. Keister served in the 393rd Bombardment Squadron.
Stanley McCracken worked for the United States Engineer District Office.
C. Varuzzo worked for the United States Engineer District Office.
Morris Meyer served in the 603rd Air Engineering Squadron.
Colonel Arthur “Pete” V. Peterson was the Army’s area engineer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.