Eugenio Rascon – A gunman, he shot and killed Demas Garcia in New Mexico on November 18, 1883.
Robert Richardson – A gunman, he shot and killed Louis Lesser on November 12, 18 81 in Tesuque, New Mexico
John Henry Riley – A partner in the Dolan – Murphy store in Lincoln, New Mexico, the Ireland immigrant was one of the main leaders of the Dolan-Murphy faction in the Lincoln County War. He died in 1916.
Johnny Ringo (John Ringgold) (1850-1882) – Ringo earned a deadly reputation in numerous gunfights and fought with Scott Cooley in the Mason County War. Later he showed up in Tombstone, Arizona, where he hooked up with the Clanton Gang. Later he was found dead, some say at the hands of Wyatt Earp or Doc Holliday.
Petronilio Rivera – A gunman, he killed a man on October 23, 1884, in Tularosa, New Mexico.
John Roach – A gunman and gambler in Kingston, New Mexico.
Andrew L. Roberts, aka: Buckshot Roberts, Bill Williams (18??-1878) – A Texas Ranger, outlaw, and member of King Fisher’s Gang in New Mexico, Roberts heroically stood up against Billy the Kid and the Regulators in 1878 in what’s known as Buckshot Roberts Last Stand.
William Robertson – A gunman, he was shooting at an enemy when police killed him in April 1880 in Quemado, New Mexico.
Jesus Rodriguez – A gunman and horse thief, he fought with the Regulator in the Lincoln County War of New Mexico. Afterward, he disappeared.
George A. “Roxy” Rose – A member of the John Kinney Gang during New Mexico’s Lincoln County War. Afterward, he disappeared.
Fred Roth – A gunman, he shot and killed James Spurlock in the Spring of 1885 on John Chisum’s Ranch in New Mexico.
P. Ryan – A gunman, he shot and killed Charles Walker on June 23, 1881, in San Marcial, New Mexico.
William L. Rynerson – A gunman and New Mexico legislator, he killed Territorial Chief Justice John P. Slough in Santa Fe. He was tried but acquitted. Later, he was a Dolan-Murphy gunman in the Lincoln County War.