Sam G. Andrews

William J. McGraw

James McIntosh

James McIntosh was a draftsman at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank R. Johnson

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

Robert Blizzard

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