National Museum of Nuclear Science & History
William Crum was born on September 4, 1925, in Hancock County, IL. He was the seventh of eight siblings who grew up on a farm in Western Illinois near the Mississippi River.
Robert Paulsen was a laboratory helper at the Chicago Met Lab.
Evelyn O. Gaston was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.