Oatman became determined to never give up the search for his only surviving siblings. Captivity and Conversion After the attack, the Native Americans took some of the Oatman family's belongings, along with Olive and Mary Ann. Although Olive Oatman later identified her captors as members of the Tonto Apache tribe, they were probably of the Tolkepaya tribe (Western Yavapais) living in a village southwest of Aguila, Arizona, in the Harquahala Mountains. After arriving at the village, the girls were initially treated in a way that appeared threatening, and Oatman later said she thought they would be killed. However, the girls were used as slaves to forage for food, to lug water and firewood, and for other menial tasks. During the girls' stay with the Yavapais, another group of Native Americans came to trade with the tribe. This group was made up of Mohave Native Americans. The daughter of the Mohave Chief Espaniole saw the girls and their poor treatment during a trading expedition. She tried to make a trade for the girls. The Yavapais refused, but the chief's daughter, Topeka, was persistent and returned once more offering a trade for the girls. Eventually the Yavapais gave in and traded the girls for two horses, some vegetables, blankets, and beads. After being taken into Mohave custody, the girls walked for days to a Mohave village along the Colorado River (in the center of what today is Needles, California). They were immediately taken in by the family of a tribal leader (kohot) whose non-Mohave name was Espaniole. The Mohave tribe was more prosperous than the group that had held the girls captive, and both Espaniole's wife, Aespaneo, and daughter, Topeka, took an interest in the Oatman girls' welfare. Oatman expressed her deep affection for these two women numerous times over the years after her captivity. Aespaneo arranged for the Oatman girls to be given plots of land to farm. A Mohave tribesman, Llewelyn Barrackman, said in an interview that Olive was most likely fully adopted into the tribe because she was given a Mohave nickname, something only presented to those who have fully assimilated into the tribe. Olive herself would later claim that she and Mary Ann were held captive by the Mohave and that she feared to leave, but this statement could have been colored by the Reverend Royal Byron Stratton, who sponsored the publication of Olive's captivity narrative shortly after