Doc Holiday, also known as John Henry Holliday, killed several men in his lifetime, most of which stemmed from personal quarrels and disputes.
However, it's important to note that the information about Doc Holiday's life is often shrouded in legends, myths, and unreliable accounts, and some of the killings attributed to him remain unsubstantiated. According to different sources and historical records, here are some instances where Doc Holiday is said to have killed or been involved in confrontations:
1. Mike Gordon (Wyatt Earp's Assistant) - Tombstone, Arizona (October 26, 1881): Doc Holiday allegedly shot and killed Mike Gordon, a faro dealer and associate of Wyatt Earp, during an argument that broke out in a gambling hall.
2. Henry Alf (*Curley Bill* Brocius) - Tombstone, Arizona (March 28, 1882): During the infamous "Gunfight at the O.K. Corral," Doc Holiday was involved in a shootout alongside Wyatt Earp and Virgil Earp against a group that included Ike Clanton, Tom McLaury, Billy Clanton, and Henry Alf. Alf was one of the gunmen killed during the confrontation.
3. Johnny Tyler & Frank McLaury - Tombstone, Arizona (October 26, 1881): A couple of hours before killing Mike Gordon, Holiday and Wyatt Earp confronted Johnny Tyler and Frank McLaury, two associates of the Cowboys, in a lot behind the saloon. McLaury was killed in the shootout.
4. Ed Bailey - Tombstone, Arizona (June 21, 1887): Doc Holiday may have been involved in a gunfight with Ed Bailey, who was later found dead with multiple gunshot wounds. Some sources suggest that Johnny Ringo may have been responsible for this killing rather than Holiday.
5. Mysterious Man in a Saloon (Identity Unknown) - Denver, Colorado (1887): It's said that Doc Holiday killed an unidentified man in a saloon over an argument about spilled liquor.
6. Billy Allen - Leadville, Colorado (August 18, 1879): Doc Holiday is rumored to have killed a gambler named Billy Allen in a card game dispute in Leadville. It's worth mentioning again that some of the accounts and stories surrounding Doc Holiday's life and alleged killings may be embellished or even fictionalized. Historians and researchers continue to study and debate the actual details and accuracy of these events.