Francis Durham

Okey B. Ellison

Okey B. Ellison was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

C. E. Hockmeyer

Sam Campbell

Before he came to Hanford Sam Campbell had a varied work history, including service with the coast artillery in the Philippines and pipeline construction in South America.

Ubaldo Sanchez

Ubaldo Sanchez was a staff worker at Los Alamos during the Manhattan Project.