Author: John Williams
Alternate names: Williams, John, Sir, 1896-; Sir John Protheroe Williams (1896-1989) master mariner and salvor; Williams, John 1896- Sir; Sir John Protheroe Williams; John Protheroe Williams
Born: 5 Mar 1896
Died: 1989
Bio: mariner, introduced mechanical grab buckets in the early 1930s which were adapted to work on a ship's derrick to discharge bulk cargo on the Melbourne wharf