Pollard was born Siegfried Pollak in Vienna on 21 April 1925, the second son of Moses Pollak, a commercial traveller, and Leontine Katz, a schoolteacher. He died in Sheffield, following a Short illness, on 22 November 1998. He received his early education at the Chajes Realgymnasium, a Jewish private school, where he excelled at mathematics and the violin. Following the German annexation of Austria in 1938, his parents sent him to Britain in December 1938. He went first the Whittingehame Farm School near Edinburgh, a scheme preparing youngsters for life on a kibbutz. In 1941 he worked on a rural scheme in Worcestershire, and then as a market gardener in Cambridge. He resumed his studies, gaining a Place at the LSE on a correspondence basis. In 1943 he joined the British army and served in Belgium and Germany, changing his name to Sidney Pollard. He was demobilized with the rank of corporal in the winter of 1946–7.
From The Biographical Dictionary of British Economists in Oxford Reference.