(1874-1953) Professor of Mathematics at McMaster University; Society President (1938-39).

(1899-1979) Dominion Astronomer (1946-64); Society President (1951-52); Service Award 1964.

(1881-1956) Dominion Observatory solar astronomer; Society President (1936-37).

(1864-1951) U of T mathematician; Society President (1910-11).

(1893-1974) Director of the Canadian Meteorological Service (1946-59); Society President (1949-50).

(1904-51) DAO/DDO astronomer; Toronto Star columnist; Society President (1941-42).

(1886-1977) DO/DAO astronomer; DDO director (1935-45); Society President (1932-33).

(1913-1969) Society President (1962-64), Journal editor (1957-69), Handbook editor (1958-70); Service Award (1967).

(1878-1940) DO and DAO astronomer; first winner of the RASC Gold Medal (1906); Society President (1928-29).

(1865-1957) A 67-year member of the Society (Toronto); writer of a Toronto Telegram astronomy column (1900-48); Society Secretary (1902-17) and President (1920-21).