National Museum of Nuclear Science & History
John Kenyon Kinnear, Sr. was raised in Brooklyn, NY. He joined the Army and because he was a tool and die maker, he was assigned to the Manhattan Project.
Attended Pennsylvania State University.
Crawford Greenewalt (1902-1993) was an American chemical engineer. He was one of the managers of the Manhattan Project for DuPont.
Lee W. Matson served in the 1st Ordnance Squadron.