National Museum of Nuclear Science & History
John Leahy worked for the United States Engineer District Office.
E. S. Ryan, Jr. worked for the Poe Piping & Heating Company.
William “Willie” H. Zachariasen was a physicist and consultant at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Warren L. Coble served as a sergeant in the 393rd Bombardment Squadron. Coble was regularly assigned as a radio operator in the Up An’ Atom, but did not fly in that plane during the August 1945 bombing missions on Hiroshima and Nagasaki.