Alexander William Doniphan, American lawyer and colonel (d. 1887)
Alexander William Doniphan (July 9, 1808 – August 8, 1887) was a 19th-century American attorney, soldier and politician from Missouri who is best known today as the man who prevented the summary execution of Joseph Smith, founder of the Church of Jesus Christ of Latter Day Saints, at the close of the 1838 Mormon War in that state. He also achieved renown as a leader of American troops during the Mexican–American War, as the author of a legal code that still forms the basis of New Mexico's Bill of Rights, and as a successful defense attorney in the Missouri towns of Liberty, Richmond and Independence.