Social reform efforts of the settlement-house movement have provided, in part, the foundation for today’s Maternal and Child Health Bureau’s policies, programs, and services. Planning, implementing, and evaluating policies and programs that affect the health and well-being of mothers and children require a multidisciplinary approach. Social workers, whose skills encompass direct services, advocacy, planning and research, community development, and administration, have a critical role to play in improving the health outcomes of maternal and child populations.