Society members have contributed to the collection and preservation of local history through the Sangamon Valley Collection of Springfield's Lincoln Library, the oral history program at the University of Illinois at Springfield, and with various publications on area history.

Members have enjoyed a variety of special programming on the varied and important history of Sangamon County. These programs include the monthly guest speaker programs, the "Annual Walk Through Oak Ridge Cemetery," and the Annual Lincoln Colloquium, a conference on Abraham Lincoln.