Henry Ince (1736–1808) was a sergeant-major (and later lieutenant) in the British Army who achieved fame as the author of a plan to tunnel through the North Face of the Rock of Gibraltar in 1782, during the Great Siege of Gibraltar. As a result of his work, by the end of the 18th century Gibraltar had almost 4,000 feet (1,200 m) of tunnels in which dozens of cannons were mounted overlooking the isthmus linking the peninsula to Spain. He was one of the first members of the Soldier Artificer Company, a predecessor to today's Royal Engineers, and rose to be the Company's senior non-commissioned officer. He was also a founder of Methodism in Gibraltar through his activities as a Methodist lay preacher. Ince spent most of his life in the Army and served for 36 years in Gibraltar before retiring