National Museum of Nuclear Science & History
Easter worked in the United States Engineer District Office.
August “Gus” Knuth was a millwright and carpenter who helped construct Chicago Pile-1. He was present on December 2, 1942 when the pile went critical in the first self-sustaining chain reaction in history.
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Audrey “Bud” Learn Aeby was a staff member at Los Alamos during the Manhattan Project.
