A Who's Who-type biographical sketch of J. J. O'Neill might read as follows: O'Neill, John Johnston, born Port Colborne, Ontario, Canada, 12 November 1886, died Ottawa, Ontario, 1 June 1966; son of Thomas John and Mary Jane (Henderson) O'Neill. B.Sc. McGill University 1909; Ph.D. Yale University 1912. Married Lillian Mary Campbell, 9 December 1918. Children: Gordon Campbell, killed in action in World War II, and Melville Henderson. Geologist, Canadian Arctic Expedition, 1913-16; geological staff, Geological Survey of Canada, 1914-20; assistant professor of geology, McGill University, 1921-27; associate professor 1927-29; Sir William Dawson Professor of Geology and Head, Department of Geology, 1929-52; Dean of Science, 1935-39; Dean of Gradu...