Jack Jacobson

M. E. Gregson

M. E. Gregson worked for the Roane-Anderson Company.

Leo P. Hassen

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

R. V. Pierce

Pierce worked in the 200 West Area at Hanford during the Manhattan Project.  

R. B. Crawford