National Museum of Nuclear Science & History
Landis worked for Stone and Webster Engineering Corporation.
Margaret Hoffarth was born in Colorado and moved west with her parents, traveling to Idaho in a wagon train.
Waldrop arrived at Oak Ridge in early 1944, directly after receiving his Army basic training. At Oak Ridge, he worked at the Y-12 plant during the Manhattan Project.
John W. Gofman was an American scientist who helped develop plutonium separation techniques during the Manhattan Project.