David J. George

Casmer Lesnioski

Casmer Lesnioski worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Irving L. Kintish

Arthur S. Opsahl

Arthur S. Opsahl served in the 603rd Air Engineering Squadron.

Adrian B. Stewart

Adrian B. Stewart (1909-1989) was a civil scientist who worked at Los Alamos during the Manhattan Project.