Outlaw Justice by Robert Vaughan
When sixteen- year-old Troy Elliot’s father, mother, and sister are killed, he is shot and left for dead. But he doesn’t die, and over the next six years he starts a campaign of revenge. His campaign accounts for all but one of the men who broke into the house that night. He has not found the leader, because Troy never got a look at him.
Now, as a shotgun guard for Wells Fargo, Troy’s quest for vengeance is interrupted when he is framed for the murder of his driver, Rice Pendleton.
Rice Pendleton is the father of Alexandria Pendleton, a beautiful woman stagecoach driver. Troy is attracted to Alex, but the false charge of murder stands between them.
Troy is forced to take up the outlaw trail until he is able to clear his name, deliver justice to the leader of the men who killed his family, and win the hand of the comely Alex Pendleton.