On 10 July 1885 "Decisive steps in the formation of this Society were taken at the Preliminary Meeting held on the afternoon of 10 July 1885 at the Banqueting Room of the Adelaide Town Hall." (Proceedings of the Royal Geographical Society of South Australia, Centenary Issue, Volume 1985 pp112, 113).
The special meeting in 1986 to mark the centenary was followed by a celebratory supper held at Beaumont House, the former home of the Society's first president, Sir Samuel Davenport.
The banner was re worked in 1999 when the name of the Society was changed from the Royal Geographical Society of Australasia to its current title the Royal Geographical Society of South Australia.