Amazing experience to have climbed Mount Louis 62 years ago and to have climbed it with Lawrence Grassi. Grassi is quite a legend and his legacy is the many hiking trails he built around Lake O'Hara and Canmore. He was an accomplished climber and put up first ascents like Little Sister beside Canmore.
Thanks for the story.
Note that the old summit registers are stored in the Alpine Club of Canada Clubhouse in Canmore.