The family member Phineas Young died at the age of 80. Here is all you want to know, and more!
Biography - A Short Wiki
Famous as one of the first converts to and missionaries of the Latter Day Saint movement, Young is perhaps best known as the older brother of LDS Church president Brigham Young.
He had nine wives: Clarissa Hamilton, Lucy Cowdery, Sarah Hollister, Phebe Clark, Maria James, Elizabeth Rea, Harriet Little, Constantia Langdo, and Lavina Clark.