(1960–2005) Ray Thompson's observatory at 7 Welton Street, Maple, Ontario.

(1900?–33?) Rev. Dr. Marsh's observatory on Aberdeen Avenue, Hamilton, Ontario.

(1900?–53?) An observatory owned (sequentially) by two Toronto members.

(1979–2016) Leo Enright's observatory at Sharbot Lake, Ontario.

(1960?–69?) Terry Dickinson's observatory in Toronto.

The Regina Centre's observatory

(1904-90) An active member of the Hamilton Centre.

(1846-1930) Math teacher at Upper Canada College, later a lawyer; Society President (1896-97).

(1916–94) An active Saskatoon Centre member; Service Award 1982.

(1893-1988) DAO astronomer. Society President (1940).

(1941-) A longtime professor of Astronomy at U of T Erindale, well known for his work in variable stars and astronomy education. Society President (1978-80), and Observer's Handbook editor (1971-81). Recipient of the RASC Gold Medal in 1962 and Service Award in 1977.

(1872-1965) An longtime active Victoria Centre member; Service Award 1961.

(1906-66) DAO astronomer and member of the Victoria Centre.

(1904-) An active member of the Centre français de Montréal. Received the Service Award in 1966.

(1865-1941) J.S. Plaskett played a pivotal role in the establishment of astrophysical research in Canada and helped to confirm the rotation rate of the Milky Way. He was an active member of the Ottawa Centre between 1907 and 1918, acted as an Associate Editor of the Journal for 28 years...

(?-1985) An active member of the Hamilton Centre; received the Service Award in 1984.

(1831-19??) A longtime Toronto member and observer.

(1925-91) An active observer and member of the Toronto Centre; founding editor of 'Scope; received the Service Award in 1972.

The RASC's headquarters has moved around Toronto over the years:

(1913-86) Piano teacher and author. An active member of the St. John's Centre; received the Service Award in 1977.

(1914-2005) A doctor and active Winnipeg Centre member; meteor and solar observer. Received Service Award in 1971.

(1900-84) Hamilton Centre member; received Service Award in 1972.

(1904-90) Observer and Toronto Centre member. Received the Service Award in 1979.

Work on the Society's seal started in the 1890s but a seal was not adopted until 1905.

(1911-97) Owner/operator of the Shinn Conservatory of Music; Planetarium Director at the Manitoba Museum of Man and Nature; Winnipeg Centre member; Service Award (1978); National Newsletter editor (1978-80).

(1922-73)  Quebec/CFM member; received the Service Award in 1967, served as Society President (1970-72).

Hamilton Centre telescope maker. Chant Medal 1949.

(1820-1905) D.C.L., Q.C. Served as Vice President of the Society (1892-94), and President (1895).

A horticulturist and active asteroid, comet and variable star observer. Chilton Prize 1983, Chant Medal 1988.

(1861-1937) Professor of Engineering at U of T; Society President (1912-13).

(1878-1954) Dominion Observatory Director (1924-46); Society President (1924-25).

(1857-1940) F.R.S.C., F.R.A.S.C. Director of the Toronto Observatory and Superintendent of the Dominion Meteorological Service (1894-1929), and President of the Society (1902-03). He was knighted in 1916.

RASC Gold Medal winner (1948) and Dominion Observatory astronomer.

A 4-inch Wray refractor owned by A.F. Miller, Boyd Brydon, and RASC Victoria Centre (1882–present).

(1923–2015) An accomplished observer and member of the Toronto Centre; recipient of the Chant Medal in 1967.

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

(1893–1962) Toronto Centre member; a prominent observer of his day; first Chant Medal recipient.

(1912-99) An active 75-year member of the Toronto Centre. He received the Service Award in 1960.

(1842-1905) B.A., M.A., M.B. A school inspector by trade. He built the 12½" reflector (the largest in Canada at the time) that he used to observe the heavens from his observatory on Talbot Street in Simcoe, Ontario.

(1902-) An active observer in the Montreal Centre; received the Service Award in 1966.

(1883-1946) Engineer and telescope maker; Edmonton Centre member; Chant Medal 1943.

(1859-1926) A doctor who joined the Society in 1892 and served as President (1916-17).

(?-?) Member of Vancouver and Victoria Centres, received the Society's Service Award in 1974.

(1907-2000) An active member of the Montreal Centre and the driving force behind the observing programs there from the 1940s through the 1960s.

(1922-) An active Hamilton Centre member; received the Service Award in 1984.

(1931-) A founding member of the Calgary Centre; involved with planetaria in Calgary and Vancouver; received the Service Award (1967).

(1911-2002) DAO Director (-1976) and Society President (1964-66).

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