Hafen and his wife are the parents of seven children. She has a master's degree in English, which she taught at BYU, both while Bruce was getting his law degree and also starting in 1980. She served on the LDS Church's Young Women General Board from 1987 to 1993. The Hafens have co-authored two books. They also jointly published an article in the Ensign in 2007 explaining the co-equal leadership of the family by men and women that was important to the development of this idea within the restored gospel of Jesus Christ.