- Two Woodward aircraft engine governors and a Hamilton Standard governor in the middle(made by Woodward).
- Elmer and George looking over several Hamilton Standard aircraft engine governor.
- Elmer Woodward writes about his type A and type B aircraft engine governor. Page 2.
- Elmer Woodward's first aircraft engine governor patent.
- Elmer and George looking over propeller engine governors ready for shipment.
- Documenting the evolution of the Woodward governor.
- From the archives.