Robert J. Wendlandt

J. B. Gergen

Robert Ellingson

Robert Ellingson arrived in Oak Ridge in June 1943. Shortly after Ellingson arrived, however, he was informed by his employer, Tennessee Eastman, that they already had too many chemists and chemical engineers.

Joseph H. Heartberg

Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

P. C. McMahon

McMahon worked in the 100 D Area at Hanford during the Manhattan Project.