Note on terminology -- Introduction -- The fabric of our civilization as we know it : family in research and policy -- I have kept my blood pure : gender propriety, class privilege, and racial purity in family reunification during the exclusion era -- Reason of elemental humanity : the urgency of uniting families in the post-war era on the road to immigration reform -- Our nation's efforts to protect families has fallen far short : pluralist ideals and vulnerable families -- Conclusion -- Notes -- Appendix: Data and methods -- References -- Index.