Date of Birth : Mar 14, 1791
Date of Death : Sep 15, 1868
Birth Place : Philadelphia
William Mervine was a Rear Admiral in the United States Navy, whose career included service in the War of 1812, the Mexican-American War and the American Civil War.
Born in Philadelphia, Pennsylvania, Mervine was appointed midshipman in January 1809. Serving on Lake Ontario during the War of 1812, he later cruised off Africa and South America, in the West Indies and in the Pacific.
While in command of the Savannah during the war with Mexico, 1846–47, he led a detachment of sailors and United States Marines against Monterey, California, and on 7 July 1846, took possession and hoisted the American flag over the city. On 7–9 October 1846, Mervine led 203 U.S. Marines, 147 American sailors, and volunteers in the invasion of Los Angeles where he lost the Battle of Dominguez Rancho. Fourteen Marines were killed. Jose Antonio Carrillo, a Californio rancher, led 50 Spanish Californio lancers in that defeat of Mervine and the American forces.
Serving also during the Civil War, he commanded the Gulf Blockading Squadron from 6 May 1861, until obliged by ill health to give up the command on 22 September 1861. He died at Utica, New York.