J. A. Metcalf

Leo P. Hassen

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

J. E. Southerland

J. E. Southerland worked for the United States Engineer District Office.

F. G. Tabb

Tabb worked at the 100-D Area and 300 Area at Hanford during the Manhattan Project. 

George Lutzenberger