Carl R. Seitz

Frank Karcher

Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Harry Allen

Harry Allen worked in procurement and supply for Los Alamos during the Manhattan Project. He was also involved in organizing preparations for the Trinity Test.

Amodon Garcia

V. N. Hacker

V. N. Hacker worked for the J.A. Jones Construction Company.