Richard A. Vaughn

Kenneth Pumphrey

Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.

James N. Bowers

Dunell Cohn

Dunell Cohn was born in Oak Ridge, Tennessee, in 1944. Cohn’s father, Waldo, was recruited to work on the Manhattan Project in Chicago in 1942 for his work on radioisotopes at Berkeley and Harvard during the 1930s.

O. P. Wiendell

Wiendell worked at the 200 West Area at Hanford during the Manhattan Project.