National Museum of Nuclear Science & History
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
Hardleben worked at the 100-F Area at Hanford during the Manhattan Project.
Baldwin worked at the 100-F Area at Hanford during the Manhattan Project.
Frederick A. Zenz was a chemical engineer, and received a B.A. in Chemistry from Queens College. He then earned his M.
