Delaying girls' early marriage is a critical public health and education goal in developing countries, in which their own or their mothers' education may play an important role. This paper reviews the existing evidence of any relationship between girls' schooling or women's literacy education and delayed marriage for themselves or their daughters. The majority of research reports focus on the correlation between girls' schooling and brides' age at first marriage. But it is conceivable that adult women's/mothers' literacy education also has considerable influence on the age at which their daughters are married. Since this aspect has hitherto not been explicitly investigated, the authors propose a model--based on relevant research about the outcomes of girls' schooling and women's literacy education--of the mechanisms that mediate between women's education and delayed marriage for their daughters. The authors argue for research that will inform policy makers interested in helping girls complete secondary schooling about the potential contributions of adult women's literacy education to this goal.