The Russell Sage Foundation was established by Mrs. Margaret Olivia Sage in 1907 for “the improvement of social and living conditions in the United States.” The foundation now focuses exclusively on supporting social science research in its core programs as a means of examining social issues and improving policies. Grants are available for research assistance, data acquisition, data analysis, and investigator time for conducting research and writing up results.
A detailed letter of inquiry must precede a full proposal. About 15% of investigators who submit LOIs are invited based on external reviews to submit proposals.
See http://www.russellsage.org/how-to-apply for more details. Questions should be sent to programs@rsage.org.