Who is Sam Ealy Johnson from Lyndon Johnson and the American Dream and what is their importance?

Sam Ealy Johnson was Lyndon's grandfather. He lived down the road and was probably the only family member who provided young Lyndon with the unconditional love a child needs. Sam had been a cowboy during most of his working years, driving cattle herds to market in Kansas. He also served as a Confederate soldier during the Civil War, after which, he returned to Texas to build a home and marry. Sam's political beliefs in support of the common man probably had a significant influence on Johnson's own politics.