Travers' political career covered both national and provincial politics. He was a member of the 1st New Zealand Parliament, representing first the Town of Nelson and then Waimea electorates, and served in the brief Forsaith Ministry formed by Thomas Forsaith. In the 1st Parliament, the Town of Nelson was a two member electorate. On nomination day on 25 July 1853, Travers and James Mackay were the only candidates put forward. They were thus declared elected unopposed. Parliament's first term started on 24 May 1854. Travers and William Cautley, MP for Waimea, both resigned on 26 May 1854. Travers subsequently contested the electorate that Cautley had vacated, being elected in the 21 June 1854 Waimea by-election. He was re-elected in the 1855 general election, but was disqualified on 26 July 1859. Travers returned in the 4th Parliament as representative for the City of Christchurch, after winning the 1867 by-election. He resigned on 29 July 1870 before the end of the term. He was a member of the 6th Parliament as representative for the City of Wellington, having won the 1877 by-election. He resigned on 25 January 1878. He also served in the councils of Nelson Province and Canterbury Province, and unsuccessfully stood for the superintendency of both. He stood as one of seven candidates for the Nelson Provincial Council in 1853 in the Town of Nelson electorate, where five seats were elected. He came sixth and was thus not elected. He represented Wellington in parliament from 1877 to 1881, but was not elected when he stood again in 1893. In Wellington he was City Solicitor, and was an advocate for the west coast railway in 1878. He subsequently became company solicitor to the Wellington and Manawatu Railway Company which built the line north from Wellington to the Manawatu. His most significant political contribution was his campaign to make central government responsible for education.
Author
Travers was a frequent contributor to scientific journals and was also the author of Stirring Times of Te Rauparaha.
Explorer, naturalist, photographer
At the same time, Travers was also an avid explorer and naturalist, often mounting expeditions into the less well known parts of New Zealand. He was responsible for tracing the source of the Waiau River, and gave the Ada River its name. He also collected many samples of mountain grasses and flowers, sending them to the Royal Botanic Gardens, Kew. Travers was also responsible for drafting the legislation that created the Wellington Botanic Garden, and was a Botanic Garden board member for 22 years.