9 Wild West Outlaws Who Wreaked Havoc Across The American Frontier

Published September 5, 2022
Updated May 14, 2025

The “Deadly Dentist” Doc Holliday

Young Doc Holliday

Public DomainDoc Holliday as a young man, back when he thought he’d be a regular dentist. 1872.

John Henry “Doc” Holliday didn’t plan to become a Wild West legend. Born on August 14, 1851, in Griffin, Georgia, he originally wanted to be an ordinary dentist. But illness — and fate, perhaps — had other plans.

Shortly after Holliday finished dental school and opened his own dental practice, he was struck with tuberculosis. Told that he might have just a few months left to live, Holliday took one doctor’s advice and moved west, where he hoped the dry air might extend his life. Instead, it introduced the dentist to saloons, gambling, and life as a Wild West outlaw.

To make money — since his coughing disconcerted his dental patients — Holliday started to gamble. He frequently got into trouble for fighting in saloons and, to protect himself, carried a revolver and allowed his reputation as the “Deadly Dentist” to spread. But Holliday may have lived up to the name in 1877, when he was arrested in Fort Griffin, possibly for fatally stabbing a cheat in the stomach (or possibly for illegal gaming).

Wild West Outlaw Doc Holliday

Public DomainDoc Holliday in Prescott, Arizona. 1879.

But unlike most Wild West outlaws, Holliday found his way back to the straight and narrow. After moving to Dodge City, Kansas with Big Nose Kate, the most significant romantic partner of his life, he tried to practice dentistry again. And he fatefully befriended the legendary lawman Wyatt Earp.

When Earp and his brothers set out for Tombstone, Arizona, in 1879, Holliday followed them. There, he supported the Earp brothers as they struggled to contain Tombstone’s criminal element, and fought alongside them in the 1881 Gunfight at the O.K. Corral, which led to the deaths of three outlaws.

Just six years later, however, Doc Holliday’s tuberculosis finally caught up to him. The “Deadly Dentist” went to Glenwood Springs, Colorado, in hopes that the hot springs would improve his health. Instead, he died at the age of 36.

author
Kaleena Fraga
author
A senior staff writer for All That's Interesting since 2021 and co-host of the History Uncovered Podcast, Kaleena Fraga graduated with a dual degree in American History and French Language and Literature from Oberlin College. She previously ran the presidential history blog History First, and has had work published in The Washington Post, Gastro Obscura, and elsewhere. She has published more than 1,200 pieces on topics including history and archaeology. She is based in Brooklyn, New York.
editor
Jaclyn Anglis
editor
Based in Brooklyn, New York, Jaclyn Anglis is the senior managing editor at All That's Interesting, where she has worked since 2019. She holds a Master's degree in journalism from the City University of New York and a dual Bachelor's degree in English writing and history from DePauw University. In a career that spans 11 years, she has also worked with the New York Daily News, Bustle, and Bauer Xcel Media. Her interests include American history, true crime, modern history, and science.
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Fraga, Kaleena. "9 Wild West Outlaws Who Wreaked Havoc Across The American Frontier." AllThatsInteresting.com, September 5, 2022, https://allthatsinteresting.com/wild-west-outlaws. Accessed August 7, 2025.