Doctor John Colin Gregory (28 July 1903 – 10 January 1959) was an amateur British tennis player, best remembered for winning the Australian Open in 1929.
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Bud Collins: Total Tennis - The Ultimate Tennis Encyclopedia (2003 Edition, ISBN 0-9731443-4-3).
Colin Powell | Gregory Peck | Colin Farrell | Gregory of Tours | Order of St. Gregory the Great | Gregory Bateson | Pope Gregory VII | Colin Firth | Gregory of Nyssa | Colin Baker | Colin James | Colin Davis | Pope Gregory XIII | Pope Gregory XVI | Lady Gregory | Gregory S. Paul | Gregory Corso | Colin Meloy | Pope Gregory XV | Gregory of Nazianzus | Colin McCahon | Colin Friels | Jean-Claude Colin | Colin Wilson | Pope Gregory XI | Philippa Gregory | Gregory the Illuminator | Gregory Olsen | Gregory Blaxland | Dick Gregory |