After four years of well-site work and regional subsurface mapping in Canada, Vic Loudon undertook three years of study for a PhD, exploring computer methods while mapping sedimentary and structural geology in Banffshire, Scotland. Six years of post-doctoral research on geological computer applications followed, at Northwestern University (Illinois), Reading University (England), and the Kansas Geological Survey. He moved to London in 1969 on being appointed by the British Geological Survey to initiate and to lead their Computer Unit. This highly active group was subsumed into the NERC Compute...