- The Woodward Governor Company at 240-250 Mill Street down in the Rockford Water Power District.
- The Woodward Governor Company museum collection.
- WATER WHEEL GOVERNOR HISTORY.
- WOODWARD GOVERNOR COMPANY CATALOGUE FROM THEIR FACTORY AT 658-660 RACE STREET, CIRCA 1908.
- WOODWARD HORIZONTAL TYPE WATER WHEEL GOVERNOR IN APPLETON WISCONSIN, INSTALLED IN 1909.
- WOODWARD HORIZONTAL WATER WHEEL GOVERNOR.
- WOODWARD WATER WHEEL GOVERNORS. CATALOGUE M.