McCarthy Island as named after Timothy McCarthy, who sailed on the "Endurance" during an expedition for the Antarctic under which captain?
McCarthy Island (South Georgia):  It was surveyed by the South Georgia Survey in the period 1951–57, and was named by the UK Antarctic Place-Names Committee after Timothy McCarthy, a seaman on the "Endurance" during the British expedition under Ernest Shackleton, 1914–16. Endurance (1912 ship): Endurance was the three-masted barquentine in which Sir Ernest Shackleton sailed for the Antarctic on the 1914 Imperial Trans-Antarctic Expedition.
Sir Ernest Shackleton