National Museum of Nuclear Science & History
Leo Wojtanowski worked in a shop at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Francis O’Sullivan worked for the United States Engineer District Office.
Heuer worked at the 300 Area at Hanford during the Manhattan Project.
Edward P. Hayes was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.