R. S. Swain

Leo P. Hassen

Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Charley L. Stone

Charley L. Stone served in the 603rd Air Engineering Squadron.

P.P. Springer

Springer worked at the 200 West Area at Hanford during the Manhattan Project.

Sebastian A. Paciello