National Museum of Nuclear Science & History
M. O. Swanson worked for the United States Engineer District Office.
Charles Hensley worked for the United States Engineer District Office.
Casmer Lesnioski worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
Leon Harwell served in the 1395th Military Police Company, Aviation.
