The archives of the United Church of Christ: South Dakota Conference Collection are located at the Center for Western Studies. These records include the papers of its ministers and superintendents and various organizational branches. Those branches include the academies (colleges and Sunday schools), youth programs, missionary societies, and fellowships. Records include correspondence, printed materials, photographs, and some artifacts. Riggs family members, crucial members of the Dakota Missionary work, have subcollections included as well. The following list is comprised of those subcollections, which currently have corresponding digital material.
- Collins, Mary C. Papers
- Riggs, Alfred L. Papers
- Riggs, Stephen R. Papers
- Riggs, Margaret Louisa Irvine Papers
- Riggs, Thomas L. Papers