National Museum of Nuclear Science & History
Petersen worked in the 200 West Area at Hanford during the Manhattan Project.
Preston Veltman was an American chemist. Veltman was born in Grand Rapids, Michigan. He studied at Michigan Technological University, and earned a Ph.
Edward F. Kolley was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Smith worked at the 100-D Area at Hanford during the Manhattan Project.