- The Capital Avenue area, three blocks from Brad's boyhood house.
- The Madison Park and Pleasure Drive Association, circa 1909.
- Madison Parks and Pleasure Drive Association.
- Madison Parks and Pleasure Drive Association history.
- The Spring Harbor area in 1909.
- The Merrill Springs in the Spring Harbor neighborhood, circa 1909.
- Spring Harbor area, Lake Mendota, circa 1909.
- A 1909 map for Brad's Madion history project.
- Brad's Dad's summer estate (blue dot) on the shore of Lake Mendota designed and built by the Johnson Development Company.
- The yellow dot was Brad's childhood home and the red dot was the Pharo Boat House location.
- The Madison Park and Pleasure Drive Association Annual Report for 1910.
- A Madison Wisconsin history project.
- History of dredging the lagoon to develope a bigger Spring Harbor water area.
- A Madison Wisconsin history project.