J. W. J. Williams
English computer scientist (1930–2012) / From Wikipedia, the free encyclopedia
John William Joseph (Bill) Williams[1] (September[2][3] 1930 – 29 September 2012)[3][4] was a computer scientist best known for inventing heapsort and the binary heap data structure in 1963 while working for Elliot Bros. (London) Ltd.[5][6][7][8]