J.W. Simmons

Lomie F. Caho

Lomie F. Caho was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Al Brown

R.E. Jessen

Jessen worked at the 300 Area at Hanford during the Manhattan Project.

Ray P. Sheehan

Ray Sheehan worked for the United States Engineer District Office.