English navigator, born at Swilly near Plymouth on the 21st of August 1735. He entered the royal navy, and was employed on the French and African coasts and in the West Indies during the latter part of the Seven Years War (17601763). He served as second lieutenant of the Dolphin under Captain Samuel Wallis on the latters voyage round the globe (Aug. 1766May 1768); was made a commander in November 1771; and commanded the Adventure which accompanied Captain Cook (in the Resolution) in Cooks second voyage. On this expedition Furneaux was twice separated from his leader (Feb. 8May 19, 1773; Oct. 22, 1773July 14, 1774, the date of his return to England). On the former occasion he explored a great part of the south and east coasts of Tasmania, and made the earliest British chart of the same. Most of his names here survive; Cook, visiting this shore-line on his third voyage, confirmed Furneauxs account and delineation of it (with certain minor criticisms and emendations), and named after him the islands in Banks Straits, opening into Basss Straits, and the group now known as the Low Archipelago. After the Adventure was finally separated from the Resolution off New Zealand in October 1773, Furneaux returned home alone, bringing with him Omai of Ulaietea. This first South Sea Islander seen in the British Isles returned to his home with Cook in 17761777. Furneaux was made a captain in 1775, and commanded the Syren in the British attack of the 28th of June 1776 upon Charleston, SC. His successful efforts to introduce domestic animals and potatoes into the South Sea Islands are worthy of note. He died at Swilly on the 19th of September 1781.
See Hawkesworths Narrative of Wallis Voyage; Captain Cooks Narrative of his Second Voyage; also T. Furneauxs life by Rev. Henry Furneaux in the Dictionary of National Biography.