National Museum of Nuclear Science & History
Frances Williams worked for the J.A. Jones Construction Company.
Cornelius Harrigan served in the 603rd Air Engineering Squadron.
Rolf Landshoff (1911-1999) was a German-American physicist. Soon after receiving a Ph.D. in engineering from the Institute of Technology in his native Berlin, Landshoff began to feel nervous about his place in his home country.
Hammond worked at the 300 Area at Hanford during the Manhattan Project.
