H. R. Mears

C. P. Hokanson

Hokanson worked at the 300 at Hanford during the Manhattan Project.

Ambroso Hoelscher

Ambroso Hoelscher was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

C. O. Cassada

C. O. Cassada worked for the J.A. Jones Construction Company.

John F. Schafnitz