National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
Leo Wojtanowski worked in a shop at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Lewis W. McDuffie served in the 603rd Air Engineering Squadron.
Mary T. Burke was a research assistant in the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.