The Battle of Lincoln, New Mexico, was a five-day-long firefight between the Murphy-Dolan Faction and the Regulators that took place between July 15–19, 1878, in Lincoln, New Mexico. It was the largest armed battle of the Lincoln County War in the New Mexico Territory. The firefight was interrupted and suppressed by United States Cavalry led by Lt. Col. Nathan Dudley from Fort Stanton.

By September 1878, when Territorial Governor Lew Wallace was appointed by the president, many of the Regulators and other fighters had returned to normal life, as many had left the area. Wallace tasked Lincoln County Sheriff Pat Garrett to reduce lawlessness in the region, and, within three years, he and his deputies had hunted down and killed William "Billy the Kid" Bonney and other figures who had continued to operate in the area.

Battle of Lincoln (1878)

Background

Armed conflict in the Lincoln County War began with the killing of John Tunstall on February 18, 1878, by members of the Jesse Evans Gang (who were hired as gunmen by the "Murphy-Dolan" faction – referred to as "The House" by local residents) to harass their commercial competition in Lincoln. Tunstall had become a competitor of the established Murphy-Dolan mercantile store and bank.

Battle of Lincoln (1878)

The failure of Lincoln County Sheriff William J. Brady to take action against those responsible for the death of Tunstall led to Tunstall's supporters forming their own armed vigilante group. They called themselves the Lincoln County Regulators, and were led by Richard "Dick" Brewer. Other members included gunmen such as Charlie Bowdre, John Middleton, Frank Coe, George Coe, "Big Jim" French, Doc Scurlock, and William Bonney (later known as "Billy the Kid"). The conflict resulted in numerous deaths on both sides, including the killing of Sheriff Brady on April 1, 1878.

Battle of Lincoln (1878)

On April 29, 1878, George Peppin, the newly appointed county sheriff, led a posse that included Jesse Evans and several of his gang, as well as the Seven Rivers Warriors gang to engage three Regulators in a shootout at the Fritz Ranch, resulting in the death of Frank McNab, the wounding of Ab Saunders, and the capture of Frank Coe. Shortly after his capture, Frank Coe escaped custody, although the details are unknown.

The following morning, George Coe took up a defensive position on the roof of Alexander McSween's house. Coe had lost his trigger finger earlier in the month in a gunfight with Buckshot Roberts. He took aim at 'Dutch Charlie' Kruling, a member of the Seven Rivers gang. As the distance exceeded 350 yards, Henry Brown warned Coe he was wasting his shot, but Coe shot and successfully wounded Kruling. That same day, Seven Rivers members Tom Green, Charles Marshall, Jim Patterson, and John Galvin were killed in Lincoln, and the Regulators were blamed.

On May 15, a group of 22 Regulators—led by Deputy Sheriff Scurlock and including Bonnie—tracked down Manuel Segovia of the Seven Rivers gang. They believed he had killed McNab. Segovia was reportedly shot and killed while trying to escape custody.

The battle

McSween, although a non-participant, was the former partner of John Tunstall, and, along with John Chisum, had organized and financially supported the Regulators. On July 15, 1878, McSween returned to Lincoln with about 41 additional supporters, ten of whom he put up in his home; while the rest found beds throughout the town. Shortly afterward, a large force hired by the "Murphy-Dolan" faction and led by Peppin, arrived in Lincoln, and surrounded the Regulators at McSween's house.

The posse and the Regulators traded gunfire for much of that day. At least five Murphy-Dolan men were wounded in the initial exchange, while the Regulators suffered no casualties. During the next three days, little changed, with no further casualties reported. Finally, on July 18, a cavalry detachment under the command of Lt. Col. Nathan Dudley from Fort Stanton arrived. They had either been summoned by frightened residents or by a report that a soldier had been wounded in Lincoln.

The soldiers quickly ended the skirmish. By the end of the third day, the McSween supporters scattered around town had departed, leaving just the contingent at the McSween homestead. At some point during the night of July 18–19, however, the McSween house was set afire. When McSween and the others attempted to flee the following morning, he and several other Regulators were shot and killed. Now under the leadership of Bonney and Jim French, the Regulators quickly reassessed their position, and forced an escape from the burning adobe house.