- Woodward Governor Company's governor application for the McFarlane-Eggers Company, circa 1925.
- Woodward Aircraft Controls... At the Heart of The System.
- Governor Definitions copied from Irl C. Martins history book.
- Woodward type D water wheel governor, serial number 3881 from 1925.
- Governor Definitions.
- The Pelton Water Wheel Company and Woodward history, circa 1925.
- Close up of the data for the Woodward type D left hand governor application.
- Close up of the governor application.
- OldWoodward Blueprint number 3881.
- The governor collection for 2018.
- Shop order 12134.
- Supplying the World with Energy Controls for the 21st. Century.
- First edition of the Woodward Elements publication.
- Governor collection in the OldWoodward.com archives.
- A machine shop manufacturing history project.