- Elmer Woodward's new horizontal compensating water wheel governor, circa 1902.
- Documenting aircraft engine governor history one page at a time.
- Elmer Woodward's favorite magazine to read.
- Looking back at the evolution of the Woodward governor.
- The new Woodward horizontal compensating water wheel governor.
- A Woodward size F horizontal compensating water wheel governor at the Midway Village Museum.
- The Woodward size F horizontal compensating water wheel governor, circa 1923.
- The Woodward"size B" horizontal compensating water wheel governor.
- The Woodward horizontal compensating water wheel governor.
- Elmer Woodward's new"size B" horizontal compensating water wheel governor, circa 1902.
- The Woodward CFM56-2 series Main Engine Fuel Control in the collection.
- The Woodward horizontal compensating water wheel governor. 3
- The Woodward horizontal compensating water wheel governor. 5
- The Woodward horizontal compensating water wheel governor operating & maintenance manual.
- The James Leffel gave marker.