'' (1845) Fitzjames recommended Le Vesconte's appointment to the discovery-ship
Erebus under Captain Sir
John Franklin, which he joined on 4 March 1845 as she was fitting out for the polar expedition at Woolwich Dockyard He was among twelve officers of the
Franklin Expedition who posed for
daguerreotypes by photographer
Richard Beard at the docks before sailing. The expedition set sail from
Greenhithe,
Kent, on the morning of 19 May 1845, with a crew of 24 officers and 110 men. The ships stopped briefly in
Stromness,
Orkney Islands, in northern
Scotland. From there they sailed to
Greenland with and a transport ship,
Baretto Junior; the passage to Greenland took 30 days. At the Whalefish Islands in
Disko Bay, on the west coast of Greenland, Le Vesconte surveyed ashore with his friend
James Fitzjames, who recorded that Franklin was "much pleased with him". Here 10 oxen carried on
Baretto Junior were slaughtered for fresh meat which was transferred to
Erebus and
Terror. Crew members then wrote their last letters home, which recorded that Franklin had banned swearing and drunkenness. Le Vesconte sent a number of letters and sketches home as
Erebus sailed north into
Baffin Bay late in 1845. But after that, as with the expedition as a whole, few details of his later activities are known. In late July 1845 the
whalers
Prince of Wales (Captain Dannett) and
Enterprise (Captain Robert Martin) encountered
Terror and
Erebus in
Baffin Bay, where they were waiting for good conditions to cross to
Lancaster Sound. The expedition was never seen again by Europeans. Only limited information is available for subsequent events, pieced together over the next 150 years by other expeditions, explorers, scientists and interviews with
Inuit. Franklin's men spent the winter of 1845–46 on
Beechey Island, where three crew members died and were buried. After travelling down Peel Sound through the summer of 1846,
Terror and
Erebus became trapped in ice off
King William Island in September 1846 and are thought never to have sailed again. It is possible Le Vesconte was alive into 1848, perhaps starving to death in that year with the last surviving remnants of the crew. He is commemorated with two points of land in the Arctic - Point Le Vesconte on the south-west coast of
Baillie-Hamilton Island, and another with a similar name on the west coast of
King William Island. ==Legacy==