Same-Sex Marriage in South Dakota
Local news articles:
Mark Walker, Judge rules S.D. same-sex marriage ban unconstitutional, Argus Leader Online Edition (January 13, 2015)
Bridget Bennett, Couples react to ruling against South Dakota's gay marriage ban, KSFY.com (January 12, 2015)
Posts from the ACLU's LGBT Rights Blog
Same-Sex Marriage Laws State-by-State Prior to Obergefell
The Ohio State University Moritz College of Law Library provides a chart which summarizes same-sex marriage laws for each state, with links to applicable laws and court decisions. The chart is available here.
More information is available here from the National Conference of State Legislatures, including the following map: