National Museum of Nuclear Science & History
Donald Ames joined the Manhattan Project as a G.I. at the University of Chicago in 1943. Ames worked under Nobel Prize chemist Glenn Seaborg at the Metallurgical Laboratory, where he helped determine the chemical properties of plutonium and developed a rapid method for measuring the radium concentration in solutions.
William T. Allman, Jr. was born in Richmond, Virginia on December 26, 1917. He joined the army before Pearl Harbor, in an attempt to finish his military service before returning to school.
Elvin Krieble worked for the United States Engineer District Office.
Arnold E. Sleipnes served as a techical sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
