Deborah M. MerrillDeborah M. Merrill is professor of sociology at Clark University. She is the author of Mothers-in-Law and Daughters-in-Law: Understanding the Relationship and What Makes Them Friends or Foe and Caring for Elderly Parents: Juggling Work, Family, and Cre Giving in Middle And Working Class Families. She is also the author of When Your Children MarryHow Marriage Changes Relationships with Sons and Daughters. Read More Read Less