Sherman W. McMasters (1853 - 1892) Texas Ranger, Outlaw, and gunfighter. In a letter written to his father, Will McLaury wrote that McMaster had been killed by the Cowboys. Wyatt Earp claimed in the Flood manuscript that McMaster had been killed in 1898 in the Philippines while serving as a soldier in the Spanish American War. However, official records do not list him as a soldier. A probate record filed by his siblings in 1906 listed his death in Colorado in 1892.