 He was the father of Texas politician Samuel Ealy Johnson Jr., grandfather of Lyndon Baines Johnson, and the uncle of Johnson City, Texas founder James Polk Johnson.After serving in the Civil War, Sam married Eliza Bunton of Caldwell County on December 11, 1867.In the late 1850s, Samuel Ealy Johnson Sr. settled with his brother Jesse Thomas "Tom" Johnson in a one-room log cabin on that became headquarters for the largest cattle driving operation in seven counties.