Sam Houston signature in a bold embellished script under "Texas. ~ Tho I Risk. Measures 2 1/2 by 5 inches. "Samuel "Sam" Houston (March 2, 1793 â€“ July 26, 1863) was an American politician and soldier, best known for his role in bringing Texas into the United States as a constituent state. His victory at the Battle of San Jacinto secured the independence of Texas from Mexico in one of the shortest decisive battles in modern history. The only American to be elected governor of two states (as opposed to territories or indirect selection), Houston was also the only governor within a future Confederate state to oppose secession (which led to the outbreak of the American Civil War) and to refuse an oath of allegiance to the Confederacy, a decision that led to his removal from office by the Texas secession convention."