British naval officer and explorer Philip Carteret (1733 – 1796) participated in two of the circumnavigations of the globe. On the first, he sailed as a Lieutenant aboard John Byron's Dolphin (1764-66). He then commanded the sloop Swallow in Samuel Wallis's two-ship expedition. After a painfully slow passage, Carteret became separated from Wallis and the Dolphin while clearing the Strait of Magellan. Carteret then struck south of the usual transpacific route and sliced a segment off the area west of Easter Island that might contain the supposed continent, Terra Australis Incognita. While Wallis made the first landing on Tahiti, Carteret discovered Pitcairn, sighted, but failed to identify the Solomons as the islands found by Mendana in 1568, and carried out valuable surveys around New Britain. He then returned to Britain via the Cape of Good Hope to England in March 1769. While it took him a decade to receive another appointment, he eventually retired as a rear-admiral thanks to seniority. See here for a more detailed biographical sketch.