Samuel H. Walker, a carpenter turned soldier, fought in the Seminole War, Mier Expedition, and Mexican-American War, where he died heroically leading a charge against Santa Ana’s forces.Samuel H. Walker was an apprentice carpenter in Washington, D.C., when the second Seminole War broke out in 1838. He enlisted in a Washington militia unit and went to Florida. Upon the expiration of the unit’s service, he was employed in the construction of the railroad from Mobile ...