- Elmer Woodward's new hydraulic governor. The full page advertisement from 1914.
- Elmer Woodward's new hydraulic governor developed and patented in 1912.
- The Pelton Water Wheel Company history, circa 1919.
- A run of the river small hydro-electric power plant from 1915.
- THE LOMBARD GOVERNOR COMPANY, CIRCA 1919.
- General Electric Company ad from 1919.
- 2 page
- The Water Power Situation in Wisconsin.
- How does a Woodward Oil Pressure water wheel governor work?
- A James Leffel Water Wheel blueprint number 43640, circa 1944.
- Closeup showing the application of the Woodward vertical model compensating governor.
- A James Leffel Water Wheel blueprint number 43640, circa 1944.
- Is this Mill still standing? What happened to the Woodward governor?
- A James Leffel Water Wheel blueprint number 43640, circa 1944.
- A James Leffel Water Wheel blueprint number 43640, circa 1944.