The Sundance Kid remains one of the most enduring mysteries of the American West, a figure whose life was as much legend as fact. Before he became the infamous partner of Butch Cassidy, he was Harry Alonzo Longabaugh, born in Montclair, Pennsylvania, in 1867. His journey from a young ranch hand to one of the most wanted outlaws in U. S.
history is a story filled with daring escapes, shifting identities, and a final chapter that historians have debated for over a century. Longabaugh left Pennsylvania as a teenager, heading west with his cousin to help settle a homestead near Cortez, Colorado. He found work as a wrangler, learning the horse sense that would later define his outlaw career. After drifting through various ranching jobs, he landed in Montana Territory, but a brutal winter in 1886–87 forced him to move on through the Black Hills in search of work.
His life took a decisive turn in 1887 when he stole a horse, saddle, and firearm from a cowboy near Sundance, Wyoming. He was arrested in Miles City, Montana, and sentenced to 18 months in jail. It was during this period that he adopted the name that would follow him into history: the Sundance Kid, a reference to both the town and his departure from home at age 15. After his release, Longabaugh returned to cattle work, eventually finding employment at the Bar U Ranch in Canada’s Northwest Territories.
He also briefly co-owned a saloon in Calgary, though disputes with his partner sent him back south. By the early 1890s, he was implicated in cattle and horse theft across Montana and Canada, and suspicion tied him to a train robbery in 1892 and a bank robbery in 1897. Around this time, he linked up with Butch Cassidy, born Robert Leroy Parker, and his crew of outlaws known as the Wild Bunch. While Sundance was remembered as quick with a gun, his reputation was often overshadowed by fellow gang member Kid Curry, Harvey Logan, who was known for his deadly encounters with lawmen.
The Wild Bunch left a trail of incidents across the West, and five law officers were killed by gang members, largely attributed to Kid Curry. Wanted posters spread nationwide, with rewards reaching as high as $30,000. The gang used hideouts like the Hole in the Wall near Kaycee, Wyoming, a rugged sanctuary on high ground that allowed them to spot trouble coming from miles away. Despite these advantages, the relentless pursuit of Pinkerton Detective Charlie Siringo kept constant pressure on the gang for years.
By the dawn of the 20th century, Cassidy and Sundance were running out of options. In February 1901, the two men, joined by Sundance’s companion Etta Place, slipped out of New York aboard the British steamer Herminius, bound for Buenos Aires, Argentina. Cassidy traveled under the name James Ryan, posing as Place’s brother. The trio sought a quieter life in Patagonia, purchasing a 15,000-acre ranch on the east bank of the Rio Blanco near Cholila.
They built a four-room log cabin at the base of the Andes and attempted to reinvent themselves as legitimate ranchers. A letter written by Cassidy on August 10, 1902, preserved today by the Utah State Historical Society, describes their life with 300 cattle, 1,500 sheep, and 28 horses. Their peaceful existence began to unravel after a robbery in RĂo Gallegos in February 1905, nearly 700 miles south of Cholila. Two English-speaking outlaws robbed the Banco de Tarapacá y Argentino, and many believed the mysterious pair were Cassidy and Sundance.
Though never confirmed, the incident raised suspicions and put their carefully built cover at risk. By May 1905, the trio chose to sell their ranch and flee. The Pinkerton Detective Agency had been tracking them, and their agent in the region knew they were in Patagonia. Local politics also played a role, as Governor Julio Lezana issued an arrest warrant for the fugitives.
However, Sheriff Edward Humphreys, a Welsh-Argentine official reportedly captivated by Etta Place, quietly warned them of the danger. The trio abandoned Cholila and fled north to San Carlos de Bariloche, where they boarded a steamer across Lake Nahuel Huapi into Chile. Though they cautiously returned to Argentina by the end of 1905, the dream of living as ranchers was gone. From this point on, their lives were marked by constant movement and changing identities.
In August 1905, Sundance was living under the alias Frank Boyd in the Chilean port town of Antofagasta. On August 21, an encounter with local authorities turned deadly, and a police officer lost his life. This episode went largely unknown until 2022, when digitized issues of the Antofagasta newspaper El Industrial brought the story back to light. Sundance was taken into custody but released on a bond that would equal nearly $80,000 today.
With the discreet assistance of the U. S. Vice Consul, he managed to escape. Later that year, on December 19, 1905, Cassidy, Sundance, Etta Place, and an unidentified male accomplice struck again at the Banco de la Nacion Argentina in Villa Mercedes, about 450 miles west of Buenos Aires.
Their haul amounted to 12,000 pesos. From there, the group made a daring retreat across the Andes Mountains into Chile. By mid-1906, the strain of outlaw life began to show. Etta Place, exhausted by years of constant movement, chose to step away.
In June 1906, Sundance accompanied her back to San Francisco, effectively removing her from the saga. Her disappearance from the historical record has only deepened the mystery around her. Meanwhile, Cassidy attempted something unusual for his career: honest labor. Adopting the name James Santiago Maxwell, he found work at the Concordia tin mine in the Bolivian Andes.
When Sundance returned from the United States, the two men were once again side by side, but in an entirely new role. Instead of planning robberies, their main responsibility was guarding payroll shipments for the mining company. In late 1907, the pair traveled east into Santa Cruz, Bolivia, still searching for stability. This phase raises one of the most intriguing questions of their story: had they truly abandoned the outlaw trail, or were they merely buying time before the next chapter of legend unfolded?
On November 3, 1908, a payroll courier for the Aramayo Francke and CIA silver mine was intercepted by two masked Americans near the remote town of San Vicente, Bolivia. Many believed they were Cassidy and Sundance. Three days later, the strangers were reportedly seen inside San Vicente, checking into a modest boarding house owned by miner Bonifacio Casasola. Suspicion grew when the men were spotted with a mule branded with the Aramayo company’s mark, linking them to the missing payroll.
Casasola discreetly notified authorities, and Captain Justo Concha dispatched soldiers to respond. By the evening of November 6, the boarding house was quietly surrounded. What happened next turned the scene into legend. As authorities closed in, the occupants resisted, sparking a standoff that stretched late into the night.
Witnesses recalled hearing a man cry out three times around 2:00 a. m. , followed by two shots from inside. The meaning of those sounds would be debated for generations.
When dawn broke on November 7, authorities entered the boarding house and discovered the lifeless bodies of two men. Each showed multiple wounds to their arms and legs. One, thought to be Longabaugh, had a single wound to the forehead. The other, believed to be Cassidy, bore a similar mark at the temple.
The official report speculated that Cassidy may have acted to end Sundance’s suffering before turning the gun on himself. Whether this theory reflects reality has been debated ever since. The Tupiza police identified the pair as responsible for the payroll robbery, but authorities never confirmed their true identities. There were no fingerprints, no photographs, and no eyewitnesses who could say with certainty that these were indeed Cassidy and Sundance.
The two men were buried quietly in the San Vicente cemetery, but the exact location of their resting place was eventually lost. In 1991, American forensic anthropologist Clyde Snow led a team to San Vicente to solve the mystery. Excavations were carried out, but none of the remains matched the DNA of Cassidy’s or Longabaugh’s living relatives. Snow’s work later became the basis for the British documentary Wanted, Butch Cassidy and the Sundance Kid in 1993.
In 2017, a fresh investigation shifted attention to Goodsprings, Nevada, where some believed Cassidy had secretly lived out his final years. Human remains were found during the dig, but again, DNA testing failed to establish any connection to the outlaws’ family line. For more than a century, rumors of survival have persisted. One of the most intriguing stories centered on Longabaugh, who some claimed quietly resettled in Duchesne, Utah, under the assumed name William Henry Long.
Long passed away in 1936, leaving behind little to connect him to the legendary outlaw other than whispers. In December 2008, Long’s remains were exhumed and subjected to modern DNA testing. Anthropologist John McCullagh reported that the DNA did not match samples obtained from a distant relative of the Sundance Kid. Without a genetic link, the story could not be confirmed, but the investigation itself shows how enduring the mystery remains.
The life of the Sundance Kid remains one of the Wild West’s greatest puzzles, a story of loyalty, daring escapes, and unanswered questions that still spark debate more than a century later.
