Donald L. Robertson Books in Order

After promising a dying friend to help his family, Josh Logan reaches their Texas ranch and discovers it threatened by rustlers and land grabbers. Remaining to protect them draws him into local violence, while an unexpected romance introduces another vulnerability.

Retired Texas Ranger Chuck Nielson faces a challenge from a gunfighter who has killed seven men. Accepting could cost him his peaceful life; refusing would leave the killer free to continue.

Nolan Parker arrives in Mustang City hoping to buy a ranch, but protecting a stray dog draws him into a range war. He must decide whether to flee or confront hired gunmen.

Seeking a new life in Colorado after the Civil War, Callum Logan rescues a family from outlaws. Killing their leader draws him into a dangerous feud with the man's vengeful brother.

Callum Logan guides his family from their war-damaged eastern farm toward a Colorado ranch. Corrupt officials, thieves, and hostile encounters threaten their journey along the Cherokee Trail toward a new home.

Former Texas rancher and lawman Holt Kincannon travels through northern New Mexico after losing his wife and son. With little beyond his horse and weapons, he searches for work and a fresh start.

Civil War veteran Henry Remington awakens without his memories and accepts a Texas ranch partnership. Thrown overboard en route, he struggles to survive while confronting questions about his identity and past.

In 1830, sixteen-year-old Floyd Logan heads west after winning a shooting contest and angering an outlaw. Working as a wagon train scout, he faces violence and wilderness dangers while pursuing life in the mountains.

A grizzly attack leaves mountain man Floyd Logan dependent on a Shoshone family for survival. When raiders abduct the woman he loves, he joins the chief's son on a dangerous rescue mission.

Floyd Logan leaves his Shoshone wife and son to visit his ageing parents in Tennessee. Disease and a harsh winter threaten his journey home and his eventual return to the mountains.

Newly appointed deputy U.S. marshal Will Logan pursues Ambrose Cooper, a young killer who has already murdered a lawman. The trail leads to a New Mexico ranch whose owner is determined to prevent his nephew’s arrest.

Preparing to marry in Colorado in 1870, Will Logan is arrested on false desertion charges. Escaping a threatened lynching leads him to Texas to help a friend, where a swindler’s lies and hired gunmen put his freedom at risk again.

Civil War veteran Jack Sage reluctantly becomes marshal after witnessing a homesteader's murder in a Texas town. His determination to restore order brings him against corrupt saloon owners and swindlers, threatening the independence and future he hoped to preserve.

Hoping to retire into ranching, Jack Sage buys cattle and begins a difficult journey from Texas to Kansas. Rustlers turn the drive into a violent pursuit, forcing him to choose between his new plans and delivering justice.

Ordered to investigate the murder of a general and his son, Marshal Jack Sage travels to Wyoming to protect their surviving family. Further attacks suggest a deliberate conspiracy, drawing him toward dangerous clues and enemies in Laramie.

Jack Sage intervenes when outlaws attack a Texas family's home, but the assault ends with a child's abduction. Joining Texas Rangers in pursuit, he uncovers other disappearances and a wider scheme that makes the rescue increasingly urgent.

A violent courtroom escape draws retired lawman Jack Sage into hunting an outlaw family in New Mexico Territory. Deputized for the pursuit, he follows them into the mountains, where an ambush threatens to end both the mission and his life.

Floyd Logan’s return to his mountain home brings a vengeful outlaw clan after his family. To stop Roscoe Akers and his followers, he must pursue them through territory where both the Pawnee and Blackfoot pose additional dangers.

Jack Sage's wedding celebrations are interrupted by news that two deputy marshals have been murdered. As the only available lawman, he must weigh pursuing their killers against his promise to his bride and the family he has just gained.

Assigned to pursue the gunman who killed a senator's son, Marshal Jack Sage faces doubts about his own readiness. With a woman and two boys awaiting his return, he fears that newfound attachments may undermine the composure his work demands.

Traveling through Oklahoma Territory on presidential orders, Marshal Jack Sage interrupts the Clagg brothers' attack on pioneer families. Capturing the violent outlaws begins a continuing struggle to bring them to justice, testing his endurance against their wider campaign of terror.

Planning to resign and settle in Texas, Jack Sage must first guide his new family through territory filled with outlaws he has pursued. Their journey toward a peaceful home tests whether he can protect them while leaving his violent profession behind.