National Museum of Nuclear Science & History
David Nicodemus (1916-1999) was an American physicist. Nicodemus worked at Los Alamos during the Manhattan Project and witnessed the Trinity Test.
Arthur Compton (1892-1962) was an American physicist and winner of the Nobel Prize in Physics. A top administrator and advisor during the Manhattan Project, Compton played a key role in the making of the atomic bomb.
Charles Helmers worked for the J.A. Jones Construction Company.