2src: https://digitalarchive.tpl.ca/internal/media/dispatcher/1979205/fullThe brilliant engineer behind Hydro's system of generating plants, Richard Hearn is 90 today and, he says, ''I'm reasonably in control of my faculties.''5/7/1980Goode, JeffTSPA_0054169F7628702272288src: https://digitalarchive.tpl.ca/internal/media/dispatcher/1979203/fullDr. Richard Hearn5/7/1980Goode, JeffTSPA_0054168F7628701272287