Twin-hulled boat 'P.S. Gemini' at river bank at Mannum, with unidentified boat behind. Stone dwelling at left and wide view to opposite bank of river

The Gemini was owned by William Randell and was a double hulled vessel, with the paddle wheel mounted between. One hull was that of the Mary Ann, Randell's first pioneering paddle steamer. Boiler and engine for the Gemini were built by George Wyatt at the North Adelaide Foundry. The double-hulled construction was unwieldly and Gemini had a number of accidents. Built in 1855 it operated until 1861, after which its history has been difficult to trace, but there are some grounds for believing that one hull at least was re-built as the Nil Desperandum.

Parsons, Ronald Ships of the inland rivers: an outline history and details of all known paddle ships, barges and other vessels trading on the Murray-Darling system Ridgehaven, S. Aust.: Gould Books, 1990

Kenderdine, Sarah Historic shipping on the River Murray Adelaide: State Heritage Branch, Dept. of Environment and Land Management, 1995

Christopher, Peter Paddlesteamers and riverboats of the River Murray [Stepney, S.Aust.]: Axiom , 2000

Australian Dictionary of Biography online: Randell, William Richard (1824-1911)

Mannum Dock Museum