Frank Fukuyama discusses immigration and family values. He cites statistics showing that immigration tends to promote family values, with immigrants having lower rates of divorce, illegitimate births, and so on.
Prof. Hsiang-Shui Chen's case studies illustrate a number of aspects of the family lives of Taiwan immigrants.
Several of Norman Matloff's works treat certain aspects of immigrant families, and relations to welfare use:
Jean Tepperman's San Francisco Bay Guardian column profiles the family of Cecelia, an illegal immigrant, and how Cecelia projects Proposition 187 will affect them.
A San Francisco Chronicle article focusing on two immigrant families who would be affected by changes in the family-reunification aspects of immigration policy.
A similar article from the San Jose Mercury News.