From: O'Neal, Bill. Encyclopedia of Western Gunfighters. 1979, University of Oklahoma Press. Pages 126-131
1. November, 1868 Moscow, Texas
Mage, a former slave, following an argument over a public road. Died the following day after Hardin pumped three bullets into him.
2. November, 1868 Sumpter, Texas
Three Reconstruction soldiers, who were sent to bring Hardin to justice following the previous murder. Hardin was tipped off, and killed them in an ambush. Former confederates helped hide the bodies while Hardin escaped.
3. December, 1869 Towash,Texas
A man named Bradley who threatened Hardin with a knife after losing to him in a poker game. Hardin encountered him later in the street and shot Bradley twice in the head and chest.
4. January, 1870 Horn Hill, Texas
A circus performer, following a fight. Hardin shot him in the head.
5. January, 1870 Kosse, Texas
A thief who tried to rob Hardin. The thief's girlfriend lured Hardin to him, but Hardin outfoxed the thief and shot him between the eyes.
6. January, 1871 near Marshall, Texas
A state policeman who had taken Hardin into custody and was transferring him and several other prisoners to Waco with another policeman. When one of the policemen left, Hardin produced a gun he had obtained in jail and shot the remaining guard.
7. May, 1871 Indian Territory
An Indian. Hardin had taken up with a cattle drive to get out of Texas for awhile. When hunting for wild turkeys, Hardin and his companions encountered an Indian. Hardin shot him.
8. July 6, 1871 Abilene, Kansas
Charles Cougar, following a quarrel. Hardin shot him to death.
9. July 7, 1871 Bluff City, Kansas
Juan Bideno, a Mexican who had killed Hardin's friend, Bill Cohron. Hardin and his friends, Jim Rodgers and Hugh Anderson, and Cohron's brother, john, got a warrant for the man's arrest and they hunted him down. They cornered him at a caf�, and when he refused to surrender, Hardin shot him.
10. April, 1873 Cuero, Texas
J.B. Morgan, a half-drunk deputy of the town, who quarreled with Hardin. Morgan followed Hardin from the saloon and went for his gun, but Hardin was quicker and shot him dead.
11. July, 1873 Albuquerque, Texas
Jack Helm, the leader of the Sutton faction in the Sutton-Taylor feud. Helm and his buddies spotted Hardin and a friend in the blacksmith shop, and they approached them. Hardin simply shot Helm in the chest, and his friend emptied his pistol into Helm's head.
12. May 26, 1874 Comanche, Texas
Comanche County Deputy Sheriff Charles Webb, following a verbal fight with Hardin at a saloon. It was Hardin's 21st birthday, and he was celebrating a big win at the racetrack when he got into it with Webb. The two had an old fashioned quick draw contest, and each took a bullet, Hardin in the side and Webb in the head. Hardin escaped an angry mob that took in after him and his companions, but his brother Joe Hardin and pals Bud and Tom Dixon were soon caught and hung in Comanche.