I see clunckdriver mentioned George Neal in November. I would like to bring his name to the fore again. Now certified by Guinness as the world's oldest active pilot at 96:
George Neal Enters Guinness Record Book as Oldest Pilot | Business Aviation News: Aviation International News
Many of those hours came while he was a test pilot for de Havilland Canada. Joining the company in 1947, he was pilot-in-command for the first flights of the DHC-3 Otter, CS2F Tracker and DHC-4 Caribou, and he served as part of the flight-test teams for the DHC–1 Chipmunk, DHC-2 Beaver, DHC-6 Twin Otter, DHC-5 Buffalo, Dash 7 and Dash 8.
I met him once. A very nice, down-to-earth and unpretentious individual.