It was 1885 when her husband George decided, after much consideration, to go to Mexico [and take] his plural wives. He now had a third wife…Martha Ann Thomas. He wanted to take Phoebe with him, and he tried to get her to see how important it was to him to have her with him, but Phoebe reminded him that it would be necessary for someone to stay in Panguitch and look after their interests there, and since she was getting older, and with her children beginning to marry and settle here and also since she had already helped to settle and colonize three different localities, she felt that she should be the one to keep up the properties they had in Panguitch. He could go to Mexico, then when the colony was finally set up and he still needed her, she would come, or perhaps, by that time he could return to her. So it was now Phoebe’s responsibility, with the help of her family, to carry on and take care of the property, which consisted of a farm, livestock, cattle, horses, and sheep, a ranch at Panquitch Lake and her younger children. She ranched at the place at Panguitch Lake during the summers.

In December of 1889 her daughter Sarah Adeline, a lovely, brown-eyed young woman of 18, died of meningitis. Three years later on April 12, 1892, a married daughter, Georganna Cameron, passed away following childbirth, leaving her husband, two little girls and the new baby girl, so Grandma Sevy took the baby and cared for it until she herself became very ill. She passed away just a few days later. During the illness, the baby became ill too and died, so the family held services for the two of them together. A beloved mother, grandmother and a community friend went to her final rest.

At the time of her death on August 14, 1892, all her living children were married except her youngest, Pearl, who was thirteen years old. Pearl later went to Mexico to be with her father. Phoebe is buried in the Panguitch Cemetery in Panguitch, Utah.