National Museum of Nuclear Science & History
Fred Bader worked for the J.A. Jones Construction Company.
John O. Barker served in the 320th Troop Carrier Squadron.
Dwight Young (1892-1975) was a professional photographer working at a box factory when he heard about an opening at the University of Chicago’s Metallurgical Laboratory.
Clarence Johnson (1912-2012) was a Canadian-born chemical engineer. He was born in Alberta, Canada on November 24, 1912 to Swedish migrant parents.
