- HERRINGBONE GEAR TYPE XX OIL PUMP MANUAL.
- WOODWARD'S PROPELLER CONTROL SYSTEMS.
- Annual report data.
- The new Woodward type SI diesel engine governor.
- The number one buyer of Woodward governors was the Electro-Motive Division, General Motors Company.
- Rockford history saved for the 21st. century.
- B. F. Barns Company advertisement from 1903.
- The most powerfull control Woodward Governor Company has to date.
- W. F. & John Barnes Company Rockford, Illinois.
- The General Electric Company and the Woodward Company have been partners in business since the 1940's.
- WOODWARD PG SERIES LOCOMOTIVE GOVERNOR MANUAL.
- American Locomotive Company's Alco RS1 locomotive.
- WOODWARD HYDRAULIC GOVERNORS.
- An EMD 567 series diesel engine with a Woodward PG governor application.
- A Woodward Governor Company academy history picture.