National Museum of Nuclear Science & History
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
Otto Hillig was a Danish machinist who helped work on various projects in the early days of the Manhattan Project.
Milton Levenson (1923-2018) was an American chemical and nuclear engineer. Levenson was born in St. Paul, Minnesota in 1923 to Harry and Fanny Levenson.
Paul was a physicist at Los Alamos during the Manhattan Project.
