Mosby, John Singleton was born on December 6, 1833 in Powhatan Company, Virginia, United States. Son of Alfred D. and Virginia I. (McLaurine) Mosby.
Graduate University of Virginia, 1852.
Admitted to bar, 1855. Practiced at Bristol, Virginia, 1855-1861. Private and later adjunct in 1st Virginia Cavalry, C.S.A., 1861-1862.
Was colonel, 1862-1865, of Mosby’s Partisan Rangers, an independent cavalry command, which did much damage by cutting communications and destroying supply trains in the rear of United States of America, capturing cavalry outposts, etc. Practiced law in Virginia after war. Became Republican; supported Grant, 1872.
United States consul at Hongkong, 1878-1885. Then lawyer in San Francisco and as counsel for S.P. Railroad Company. Special agent General Land Office for Colorado, 1901.
Assistant attorney in Department of Justice, Washington, May 1904-July 1, 1910. Author: Mosby’s War Reminiscences and Stuart’s Cavalry Campaign, 1887. Stuart Cavalry in the Gettysburg Campaign, 1908.