The rough-hewn general who rose to the nation's highest office, and whose presidency witnessed the first political skirmishes that would lead to the Civil War

Zachary Taylor was a soldier's soldier, a man who lived up to his nickname, "Old Rough and Ready." Having risen through the ranks of the U.S. Army, he achieved his greatest success in the Mexican War, propelling him to the nation's highest office in the election of 1848. He was the first man to have been elected president without having held a lower political office.

John S. D. Eisenhower, the son of another...