National Museum of Nuclear Science & History
Groft worked at the 300 Area at Hanford during the Manhattan Project.
Harper Welton was a staff worker at Los Alamos during the Manhattan Project.
Johnson worked at the 300 Area at Hanford during the Manhattan Project.
Frank Oppenheimer (1912-1985) was an American particle physicist. In 1941, Oppenheimer began work at the University of California Radiation Laboratory, where he was a group leader in uranium isotope separation under Ernest Lawrence.
Edward J. Gmach served in the 1st Ordnance Squadron.
