Harold Jeffreys
Sir Harold Jeffreys, FRS was a British geophysicist who made significant contributions to mathematics and statistics. His book, Theory of Probability, which was first published in 1939, played an important role in the revival of the objective Bayesian view of probability.
22 April 1891
Born on the same birth date (22 April 1891): Laura Gilpin • Sacco and Vanzetti • Vittorio Jano
Born on the same birth day (22 April): Carl Lindner Jr. • Charles-Denis Bourbaki • Danni Wyatt • Ethel Smyth • Georg Lurich • Jack Nitzsche • Jeff Hostetler • Julius Sterling Morton • Kathleen Ferrier • Machine Gun Kelly (musician) • Peter Frampton • Princess Margaret of Prussia
Born in the same month (April 1891): Dave Bancroft • Dorothy P. Lathrop • Edward Wilfred Taylor • Françoise Rosay • Jack Buchanan • Laura Vicuña • Nella Larsen • Ole Kirk Christiansen • Vittorio Jano