- A Lucas Aerospace Company advertisement.
- Limelight on the Lucas Aerospace Company history.
- Quality assurance manual number 23024.
- Simplify Your Life.
- Elmer Woodward's first oil pressure water wheel governor operating manual, circa 1911.
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- WOODWARD GATE SHAFT TYPE WATER WHEEL GOVERNOR HISTORY.
- WOODWARD GATE SHAFT TYPE WATER WHEEL GOVERNOR HISTORY.