Isabel K. Williamson (born 1908; died 2000-06-02) won the Royal Astronomical Society of Canada's Chant Medal in 1948. A long time force at the Montreal Centre for many decades, Williamson served the Montreal Centre as editor of the Centre’s newsletter, Skyward, as Secretary, and as President. Her observations of aurora and meteors were highly regarded by professional scientists. She inspired countless observers, young and old, to take the night sky seriously and to complete scientifically worthwhile observing projects. The first Messier Club was the result of her efforts.

Rolland Noël de Tilly (born 1906; died 1983-05-18) was a leader in the Royal Astronomical Society of Canada, Centre de Montréal, for many years and was recognized with an RASC Service Award in 1979. As a supervisor for Canadian Pacific Railways, he was able to get free passes to travel to Toronto for meetings of National Council. On his normal Montreal-Quebec run, he used to give astronomy "lessons" to employees and passengers.

Jymme Curtis (Curt) Nason (born 1953-03-22) was one of the founders of the Royal Astronomical Society of Canada New Brunswick Centre in 2000, and has served as club president and editor. He has given presentations to various groups and several courses through the New Brunswick Community College and the University of New Brunswick extended learning program. He writes a column for the Telegraph Journal, the provincial newspaper, and has done radio and television interviews on astronomy.