J. W. J. Williams
WELSH-CANADIAN COMPUTER SCIENTIST
John William Joseph Williams (2 September 19301939 England and Wales Register – 29 September 2012) was a Welsh-Canadian computer scientist best known for inventing in 1964 heapsort and the binary heap data structure. He was born in Chippenham, WiltshireEngland & Wales, Civil Registration Birth Index, 1916-2007 and spent the latter part of his career in Canada, moving to Kanata, Ottawa in 1972 and working for Bell-Northern Research and Nortel before retiring in 1995.