National Museum of Nuclear Science & History
Edward Jay served in the 1395th Military Police Company, Aviation.
T. J. Costello worked for the Comstock-Bryant Electric Company.
Philip C. Leahy was a Major in the United States Army. During World War II, he was placed in charge of establishing a domestic uranium procurement program for the Manhattan Project.
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.