- Not to be confused with Captain Finnis, droving companion of Charles Sturt and for many years a prominent South Australian
|1st Premier of South Australia|
24 October 1856 – 20 August 1857
|Succeeded by||John Baker|
|Born||Boyle Travers Finniss
18 September 1807
Born at sea
|Died||24 December 1893
Adelaide, South Australia
|Resting place||West Terrace Cemetery|
|Spouse(s)||Anne Frances Rogerson (1835–1858)
Sophia Florence Maud Lynch
|Years of service||1825–1835|
Early life 
Finniss was born at sea and lived in Madras from where he was sent to Greenwich for his education. He later entered the Royal Military College, Sandhurst, placing first of sixteen candidates at the entrance examination. In 1825 he became an ensign in the 88th Regiment of Foot, was promoted lieutenant in 1827 to the 56th (West Essex) Regiment of Foot, and then spent three years in Mauritius in the department of roads and bridges.
In 1835 Finniss sold off his commission and, having been appointed assistant surveyor under surveyor-general Colonel William Light, arrived in South Australia in September 1836. He supported Light's choice of the site of Adelaide and assisted in laying out the city; his correspondence during the early years shows him to have been a man of good judgment and he was an able assistant during the surveys.
Finniss joined Light in a private surveying firm, Light, Finniss & Co. While in private enterprise, Light and Finniss surveyed several towns, including Glenelg and Gawler. He also had several other business interests, but they eventually all failed, and he returned to the public service.
Public service and political career 
In 1839 Finniss was appointed deputy surveyor-general, in 1843 he became commissioner of police and police magistrate. In 1847 he was made colonial treasurer and registrar general, and in 1851 was nominated to the South Australian Legislative Council by the governor Sir Henry Young.
In 1852 he was appointed colonial secretary, and in July 1853 had charge of the bill to provide for two chambers in the South Australian parliament. In the interim between the departure of Governor Young in December 1854 and the arrival of Sir Richard Graves McDonnell in June 1855, Finniss acted as administrator. The bill of 1853 was rejected by the British government, and a new bill was brought forward in 1855 providing for two purely elective houses. This received the royal assent in 1856.
Finniss was elected one of the representatives for the city of Adelaide and became the first premier and chief secretary of South Australia. There were early difficulties between the two houses but Finniss, during the four months his ministry was in session, succeeded in passing measures to deal with waterworks for Adelaide and the first railway in South Australia. He was treasurer in the Richard Hanson ministry from June 1858 to May 1860 and at the new election in that year was, with John Dunn one of the representatives for Mount Barker.
In 1864 the South Australian government, desiring to open up the Northern Territory, organized a survey party under Finniss, appointing him Government Representative and giving him instructions to examine the Adelaide River and the coastline to the west and east of it. Finniss chose a site, Escape Cliffs, near the mouth of the Adelaide River for the settlement, but his choice was much criticised. He had problems with insubordination of his officers (and was accused of having favourites, and a spy in Bennett); he was not popular with the men, who had expected to spend time exploring and not as much hard work; he had not secured adequate supplies for the expedition; and did not enjoy good relations with the local aborigines, and was eventually recalled. He was called before a Parliamentary Commission in May 1866 and answered his critics point by point, supported with a printed pamphlet, to the consternation of influential financier Frank Rymill, a major critic.
Late life 
In 1875 he was a member of the forest board and in the following year was acting auditor general. He retired from the government service in 1881, and spent his leisure in preparing an interesting but rambling Constitutional History of South Australia (1886). He died on 24 December 1893, aged 86, and is buried at the West Terrace Cemetery.
Finniss was twice married and left a widow, a son and two daughters. He married Anne Frances Rogerson on 13 August 1835; she died on 3 January 1858. On 3 May 1878 he married Sophia Florence Maud Lynch. His elder daughter Fanny Lipson Finniss (later Morgan) was the first European girl born in South Australia, on 31 December 1836. Finniss's employee James Hoare was father of the first boy, on 7 November 1836.
The Finniss River in South Australia and Finniss River in the Northern Territory are both named after him, along with Finniss Springs, and the South Australian Electoral district of Finniss, on Fleurieu Peninsula and Kangaroo Island.
Finniss Street, in North Adelaide was one of the dozens of street names chosen by the Street Naming Committee around 1840 to commemorate people of importance to the founding of Adelaide. Boyle Street and Finniss Street in the Adelaide suburbs of Marion and Oaklands Park came around 1856.
- "Finniss, Boyle Travers (1807 - 1893)". Australian Dictionary of Biography, Volume 1. MUP. 1966. pp. 377–379. Retrieved 30 August 2007.
- Percival Serle (1949). "Finniss, Boyle Travers". Dictionary of Australian Biography. Angus & Robertson. Archived from the original on 2 September 2007. Retrieved 30 August 2007.
- "Nominations at Wellington". The South Australian Advertiser (Adelaide, SA : 1858 - 1889) (Adelaide, SA: National Library of Australia). 26 March 1860. p. 3. Retrieved 2 February 2013.
- Parliamentary papers ... Extracts from a Private Letter from B. T. Finniss South Australian Register 13 October 1864 p.2 accessed 27 September 2011
- "Northern Territory Commission". South Australian Register (Adelaide, SA : 1839 - 1900) (Adelaide, SA: National Library of Australia). 11 May 1866. p. 3. Retrieved 25 April 2012.
- "Duryea Mining Company.". South Australian Register (Adelaide, SA : 1839 - 1900) (Adelaide, SA: National Library of Australia). 16 September 1862. p. 3. Retrieved 29 January 2012.
- "The First-born South Australian". South Australian Register (Adelaide, SA : 1839 - 1900) (Adelaide, SA: National Library of Australia). 7 November 1857. p. 3. Retrieved 4 March 2013.
- Dolling, Alison The History of Marion on the Sturt p.339 Peacock Publications ISBN 0-909209-48-0
- SA Parliament - Finniss
- Northern Territory History
- "History of Adelaide through street names". Archived from the original on 13 March 2005.
|Premier of South Australia
1856 – 1857