Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. William Gamble (January 1, 1818 December 20, 1866) was a civil engineer and a Union cavalry officer in the American Civil War. Gamble was born in the townland of Duross, Lisnarick, County Fermanagh, Ireland. He studied civil engineering, worked in the Queen''s Surveying Office, and participated in the Northern Ireland survey. He emigrated to the United States in 1838. Since he had experience as a dragoon in the British army, he enlisted as a private in the 1st U.S. Dragoons and rose through the ranks to become Sergeant Major by 1839. While in the Army he married Sophia Steingrandt on May 6, 1841, and they had 13 (by some accounts 15) children together. After fighting in the Seminole Wars, he was discharged in 1843 and worked as a civil engineer for the Board of Public Works in Chicago and lived in Evanston, Illinois. His house is now used by the Anthropology Department of Northwestern University.