H. A. Zweifel

N.H. Skarshaug

Leroy H. Jackson

Leroy Jackson was transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942.

W.D. Smutz

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

Eugenia M. Jackson

Eugenia M. Jackson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.