National Museum of Nuclear Science & History
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Doyel Stephenson worked for the J.A. Jones Construction Company.
Warren Sheehan joined Mound Laboratory in April 1956. He spent the first half of his career in health physics, or radiation safety, where he developed a new methodology for determining the amount of plutonium in urine.
