"Turns out that Brian's great grandfather Vin Walker was once a member of Jacob's great-grandfather's pack however there was a riff between the two since the tribe made a treaty with the Cullens the first time they met with Vin saying how they should trust the Cullens if they are different from other vampires not needing for a treaty. That was not okay with the others since, well, you know. So not wanting to go through with them, Vin and his family left the Reserve and moved to another state which was Minnesota."
- ―Lucien Summers on Vin Walker
Vin Walker was a Quileute tribe resident and a former member of the Black pack before he and his follower left the pack moving to Minneapolis, Minnesota. He left because of the disagreement between Ephraim Black when they made treaty between the tribe and the Cullen family.
Biography
History
Vin Walker was an active shape shifter in the 1930s. He along with his cousin and follower Jesse Hobbs were part of the pack with Levi Uley, Quil Ateara II and their Alpha, Ephraim Black to protect their land.
Sometime, the Cullen family came to live in Forks near the Quileute reservation of La Push. They were the traditional enemies of the Quileute shape-shifters, and the vampires' presence in the area made those who were of the right age phase into wolves, in preparation of a fight: Ephraim took on the role of Alpha and led the pack. Carlisle Cullen managed to negotiate a peaceful treaty with them: as long as the Cullens didn't bite any humans or cross on to the Quileutes' grounds, the shape-shifters wouldn't attack them or reveal their presence to the humans.
After that however, Vin thinks they should trust the Cullens if they are different from other vampires not needing for a treaty which causes a riff between him and Ephraim. Because of it, he along with Jesse took their family to leave the Reserve and moved to another state which was Minneapolis, Minnesota.
Legacy
In Long Live Life, Ephraim’s great grandson Jacob Black moved into Minneapolis, Minnesota with the Cullens and ran into Vin’s great grandson Brian Walker and his family. After hearing each other’s stories, the Walkers allowed the Cullens to live near them and have complete trust of the Cullens’ control but Jacob and Carlisle didn't want to feel such a pushover to the family so they agreed on remaking the treaty which is the same as the one back in Forks; stay out of each other's lands and no biting or changing humans unless the Alpha says so.