National Museum of Nuclear Science & History
Attended the University of Missouri School of Mines.
Duane Sewell began working with the Manhattan Project in 1941. He was one of the first people to arrive at Oak Ridge and experienced first-hand some of the difficulties there with cyclotrons and isotope separation.
John R. Kelleher served in the 1st Ordnance Squadron.
Olsen worked in the 200 East Area at Hanford during the Manhattan Project.
Charles Ragan worked for the United States Engineer District Office.