National Museum of Nuclear Science & History
J. S. Gehrken served in the 390th Air Service Group.
R. J. Lewinson served in the 509th Headquarters and Base Services Squadron.
Joseph H. Cummins served in the 320th Troop Carrier 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.