At one point before 2277, Joshua Graham visited the Dead Horses at their home, teaching them how to hunt and maintain their equipment, and began priming them for assimilation into Caesar's Legion. This caused the area to come into Legion influence. However, before they were inducted, the Legion lost the First Battle of Hoover Dam, and Graham was set ablaze and cast into the Grand Canyon for his failure. While they had been taught to hunt, they were not versed in warfare. Joshua's teaching brought them into conflict with other tribes, which they lost. The Dead Horses were driven from Dead Horse Point, forced to flee to Zion Canyon. They would retake their home sometime before 2281, under the leadership of Joshua Graham.
During the events of the war for Zion, Joshua asked the Dead Horses to return to Zion, to assist Daniel and the Sorrows with the invading White Legs. Whether they help them escape the valley or drive the invaders out, the tribe returns to their home afterwards.
Behind the scenes
- The Courier: "Does the valley belong to the Dead Horses?"
Joshua Graham: "The valley belongs to God, but no. The Dead Horses live at Dead Horse Point, up the Colorado River. They came here because I asked them to. Before I... returned to the fold, I visited them years earlier. I looked much different then, but I left an impression on them. I taught them how to hunt more efficiently, how to maintain their weapons and Pre-War equipment. When I returned, they showed their appreciation."
(Joshua Graham's dialogue)
- The Courier: "Wait, what about Caesar?"
Follows-Chalk: "When Joshua first came to us, he was servant to a man he called Caesar. He led his master's armies, and we were ready to follow him into war. Then he lost his master's army to a tribe called Enseeyar, the Sunset People. When he returned, he was as you saw him - burned, broken, but changed. He led us away from Caesar, led us to our own destiny in Zion."
- The Courier: "Tell me about your tribe."
Follows-Chalk: "We came up in the Land of the Dead Horse, though why the Back When folks called it that I got no hint. We raided, we fought... we lost. Our enemies drove us back into Zion, and we would have died if it hadn't been for Joshua. Joshua, and his Caesar."
The Courier: "What did Joshua do for you?"
Follows-Chalk: "If it wasn't for Joshua, the Dead Horses would still be the whipping boys of the Zion Valley. He taught us how to hold our territory, to protect ourselves. He guided us away from Caesar, and showed us how Caesar would have destroyed us."
- Honest Hearts endings, Dead Horses: "Having helped Daniel and the Sorrows escape from Zion, the Dead Horses returned to their home at Dead Horse Point. The tribe continued to learn from the New Canaanites, and over many years built a flourishing community along the banks of the Colorado. Though the tribes' bond would endure, it was Joshua Graham's legend the Dead Horses would revere, not the tenets of New Canaan's faith."
- Honest Hearts endings, Dead Horses: "Having helped eradicate the White Legs from Zion, the Dead Horses returned to Dead Horse Point in triumph. They remained neutral toward the Sorrows, but as years went on, there were periods of competitive friction, even violence, between the tribes. The New Canaanites - Daniel especially - intervened regularly as mediators, but found it difficult to reconcile the tribes' conflicts."
- Honest Hearts endings, Daniel: "For years after the defeat of the White Legs, Daniel did his best to minister to the Sorrows' spiritual needs. Try as he might, he could not hold back the tribe's increasing militancy and reverence of Joshua Graham. Demoralized, he returned to his family at Dead Horse Point. His failures haunted him for the rest of his days."