CHRISTOPHER G. ELLISON is the Elsie and Stanley E. (Skinny) Adams Sr. Centennial Professor in the department of sociology and a research associate of the Population Research Center at the University of Texas at Austin.  He is the author or coauthor of approximately one hundred journal articles and chapters on the topics of religion and family life and religion and health in the United States.  ROBERT A. HUMMER is a professor and chairperson in the department of sociology and a research associate of the Population Research Center at the University of Texas at Austin.  He is the coauthor of Living and Dying in the USA, winner of the 2002 Otis Dudley Duncan Award for Distinguished Scholarship in Social Demography from the Population Section of the American Sociological Association.