In late June, 1788, the British fur trader Charles Duncan, captain of , entered Milbanke Sound, which was then uncharted waters. He spent a few days trading with the Heiltsuk. online at Google Books He named the sound after Vice Admiral Mark Milbanke. Explorer George Vancouver sailed through the sound a few years later. In 1805, a trading ship from Boston, the Atahualpa, was attacked by a group of Tlingit; the captain and some of the crew were killed.
