- 1923.
- 1979.
- Woodward governor in the village of Milan, Michigan.
- SERIES HR2500, CIRCA 1968.
- 1968
- New Richmond Roller Mills, circa 1923.
- New Richmond Roller Mills.
- Norris Cotton Mills, circa 1939.
- Norris Cotton Mills.
- Woodward Oil- Pressure Water Wheel Governor VR series, circa 1914.
- Bulletin number 14000.
- A Woodward Governor Company advertisement from 1914.
- WOODWARD'S NEW TYPE OF OIL PRESSURE WATER WHEEL GOVERNOR GATE SHAFT TYPE.
- WOODWARD GATE SHAFT OIL PRESSURE GOVERNOR HISTORY.
- WOODWARD GATE SHAFT OIL PRESSURE GOVERNOR HISTORY.