- WGC PMC JANUARY 1989.
- Wisconsin Hydro history. Page 3.
- Wisconsin Hydro history. Page 2.
- A vintage Woodward Water Wheel governor advertisement printed on aluminum.
- A vintage Woodward Water Wheel governor advertisement printed on aluminum.
- Closeup of the advertisement.
- A vintage Woodward Water Wheel governor advertisement.
- A Woodward Hydro Governor History Project.