National Museum of Nuclear Science & History
Robert Marshak was an American physicist. Marshak was born in 1916 in New York City. He received a B.
Edward J. Gmach served in the 1st Ordnance Squadron.
Kenneth Greisen was an American physicist. He worked on the Manhattan Project at Los Alamos. He was the leader of Group X-1A (Photogoraphy with Flash X-Rays) until it was dissolved in May 1945.
