Mavis is a resident of Tumbleweed along with her husband Larry, who ran the Tumbleweed General Store. In 1898, Larry had died and was buried in Tumbleweed's church graveyard, leaving Mavis to run the store in his stead.
Events of Red Dead Online
She also operates the store in Red Dead Online, 9 years prior to the events of the Epilogue, where she offers the protagonist a variety of items of all categories, except for guns and ammunition.
Events of Red Dead Redemption 2
In the Epilogue, after the mission "Motherhood", her store can be visited by the player whom Chambers offers provisions, tonics, accessories for hunting and fishing, and horse supplies. The player is also able to purchase clothing in her shop, including four outfits exclusive to the store.
- Due to her not being present in Red Dead Redemption, her fate after the abandonment of Tumbleweed remains unknown.
- When visiting her store in the epilogue, Chambers may comment about events that took place during recently played missions, such as "Gainful Employment" or "A Really Big Bastard".