P. C. Hoell

George Thom

Clyde Fiddler

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

Seymour Bernstein

Seymour Bernstein (1923-2015) was an American chemical engineer who worked on the Manhattan Project. He was a member of the Special Engineer Detachment at Oak Ridge and worked as a laboratory supervisor at the K-25 Plant.

E. C. Harshbarger

E. C. Harshbarger worked for the Roane-Anderson Company.