Neumann, Feynman, and Ulam ID: 3310 | This file appears in: Jewish Contribution to the Manhattan Project John von Neumann (born to a non-practicing Jewish family in Hungary), Richard Feynman (a chosen atheist from Jewish parents), and Stanislaw Ulam (a Jewish-Polish immigrant). Photograph courtesy of and used with permission by the National Security Research Center at Los Alamos National Laboratory. Download Original File "Neumann, Feynman, and Ulam" appears in: Jewish Contribution to the Manhattan Project