- Effigy panther mound in Madison, Wisconsin.
- Walter Scott's Hickory Hill history project.
- The Thorstrand estate of Magnus Swenson on the shore of Lake Mendota in Madison Wisconsin
- Effigy mound history in Madison, Wisconsin.
- Farwells Point Mound Group
- Hickory Hill property history page 4.
- Madison Wisconsin history.
- The Thorstrand property history project in Madison, Wisconsin.
- The State of Wisconsin history project for 2020.
- The Spring Harbor Neighborhood area history.
- Madison Wisconsin history picture from 1864.
- Effigy mound history in Madison, Wisconsin.
- Blackhawk Country Club bear mound history.
- Property at 1721 Hickory Street in Madison.
- The Magnus Swenson Estate in Madison, Wisconsin.