Hoyt Nelson

Joe Green

Green worked in the United States Engineer District Office.

Hymer Friedell

Hymer Friedell was the deputy medical director of the Manhattan Engineer District at Oak Ridge. He worked closely with Robert Stone and Stafford Warren in studying the effects of radiation on the human body.

John F. Van Doren

John F. Van Doren worked on the procurement and property staff at the Metallurgical Laboratory in Chicago during the Manhattan Project.

R.E.F. Seymour