Retrieved 12 May 2015. The others: William Henry Bragg (1915) and William Lawrence Bragg (1915); J. J. Thomson (1906) and George Paget Thomson (1937); and Manne Siegbahn (1924) and Kai M. Siegbahn (1981). Two pairs of fathers and sons have won Nobel Prizes in other fields: Hans von Euler-Chelpin (chemistry, 1929) and Ulf von Euler (medicine, 1970); and Arthur Kornberg (medicine, 1969) and Roger D. Kornberg (chemistry, 2006). ↑ Maugh, Thomas H. II (18 September 2009).