What is the influence of family and kinship networks on fertility, marriage, migration and mortality? Population scientists have studied the relationship between families, both immediate and extended, and demographic behavior for many years. This book examines the role of kinship and the familys influence on the health outcomes of their children, their childrens selection of marriage partners, couples having higher order births or reduced fertility, individual migration and origins of populations. Mortality patterns are examined to determine the influence of fertility patterns on parents mortality, the contribution of parents longevity to their childrens lifespan, and whether a family history of disease affects the risk of dying from that same disease. The volume emphasizes the importance of studies that include and compare other factors related to social organization with information on multi-generational families. The authors elucidate previous explanations and provide provocative new results. Such intergenerational research is crucial in understanding long term demographic trends and processes.