For a number of years prior to 1922, one of Santa Fe, New Mexico's most colorful and famous residents was Charles Angelo Siringo (1855-1928), popularly known as "the cowboy detective." A small, wiry man, he was friends with practically everyone in town. In 1916 Governor William C. McDonald persuaded Siringo to accept a commission as a New Mexico Mounted Ranger for the state Cattle Sanitary Board. The only thing unusual about that was Charlie Siringo's...