Regarding Sputnik by John F. Heard, Ph. D. Director David Dunlap Observatory University of Toronto
Solar Observations, 1957-60. Material from Geoff Gaherty, RASC Montreal Centre.
Messier Object Program. Material from Geoff Gaherty, RASC Montreal Centre.
IGY Visual Aurora Program - observations and correspondence. Material from Geoff Gaherty, RASC Montreal Centre.
Comet Arend-Roland on 1957 April 29, by Bert Topham. Photo courtesy of Lynn Kirk.
Comet Mrkos 1957d. From JRASC, Dec. 1957.
