National Museum of Nuclear Science & History
R. D. Cantrell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Patrick Joseph Nolan, Sr. (P.J.) was born in Nashville, Tennessee on April 15, 1889. He grew up to be a plumber.
Vito Di Rienzo worked in bomb assembly for the 1st Ordinance Squadron, 509th Composite Group. Di Rienzo was drafted into the military in 1943 at the age of 20.
Dr. Dieter M. Gruen is an internationally known German-American chemist, inventor, and innovator. Born in Waldorf, Germany in 1922, Dr.
James Barton worked as a carpenter for the DuPont Company at the Hanford, Washington site. He never knew he was working on the atomic bomb until after it was dropped in Japan.
