Orin R. Barrett

Russell L. Arnold

H. Lenderking

John Arnold

John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge.

Elaine Palevsky

Palevsky worked on the Manhattan Project at the University of Chicago and Los Alamos. She was part of the team that designed the lenses used to photograph the Trinity test.