James A. Hooker

Morris G. Meadows

Calvin S. Shepherd

Calvin S. Shepherd worked on the Manhattan Project at Los Alamos, NM and the Trinity Site.

Fredrick “Fred” D. Johnson

Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

M. R. Hoff

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