- Circa 1925.
- WOODWARD HYDRO CONTROL SYSTEMS SINCE 1870.
- WOODWARD DIGITAL CONTROLS
- WOODWARD DIGITAL CONTROLS
- WOODWARD DIGITAL CONTROLS
- WOODWARD DIGITAL CONTROLS
- A Woodwardology project since 2007.
- The Oldwoodward.com website's front page information.
- Woodward electric hydraulic cabinet actuator history.
- First Woodward governor school held in 1927.
- The governor collection for 2018.
- Woodward Governor Company's product catalog, circa 1964.
- RELAY- VALVE OIL PRESSURE GOVERNOR CATALOG, CIRCA 1912.
- Bulletin 09026
- Manual 14045A.