United States General Zachary Taylor was victorious over Mexican General Antonio Lopez de Santa Anna in the Battle of Buena Vista on February 23, 1847. Santa Anna's loss at Buena Vista, coupled with his defeat by General Winfield Scott at the Battle of Cerro Gordo in April of that year, secured U.S. victory in the Mexican American War.

The Battle of Buena Vista was fought near Monterrey in northern Mexico. The 5,000 men fighting under General Taylor's command used heavy artillery fire to turn back nearly 14,000 Mexican troops. During the night, the Mexican army retreated, but Taylor did not pursue.

Samuel McNeil, an Ohio shoemaker who ventured to California, tells of General Taylor's bravery on the battlefield in his book McNeil's Travels in 1849, To, Through and From the Gold Regions, in California:

I must mention one circumstance that happened there, which shows the extraordinary coolness of Gen. Z. Taylor in battle. He saw a small cannon ball coming directly towards his person. Instead of spurring "Old Whitey" out of its way, he coolly rose in his very short stirrups and permitted the ball to pass between his person and the saddle. Col. Wyncoop has mentioned this circumstance in his book, and if he lies wilfully [sic], you may be sure that the shoemaker lies unwilfully [sic].

Samuel McNeil, McNeil's Travels in 1849, To, Through and From the Gold Regions, in California,Part I, page 15.
California As I Saw It: First-Person Narratives, 1849-1900