Jacob Walker, Alamo defender, was born in Rockridge County, Tennessee, in May 1799. In 1827 he married Sara Ann Vauchere, and they had four children. Walker was a resident of Nacogdoches. He took part in the siege of Bexar and afterwards remained in Bexar as a member of Capt. William R. Carey's artillery company. Susanna W. Dickinson recalled that, during the siege of the Alamo, Walker often spoke to her about his children. She also recalled that during the battle, Walker rushed into her room pursued by Mexican soldiers who shot and bayonetted him to death as she looked on. Walker was the cousin of fellow Alamo defender Asa Walker and brother of the famous mountain man Joseph R. Walker.