(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).