South Dakota Genealogical Society ($)
The South Dakota Genealogical Society (SDGS) is a state-wide
organization made up of genealogists from all areas of South Dakota
and across the country. Individual genealogists and local societies
are welcome to become members.
South Dakota State Historical Society (free)
The State Archives contains over 10,000 cubic feet of records
that document many aspects of South Dakota’s history and heritage.
With few exceptions these records are available for public
research.