- WOODWARD STANDARD TYPE GOVERNOR CATALOGUE FORM 1908.
- WOODWARD HORIZONTAL WATER WHEEL GOVERNOR.
- WOODWARD HORIZONTAL TYPE WATER WHEEL GOVERNOR IN APPLETON WISCONSIN, INSTALLED IN 1909.
- WOODWARD HORIZONTAL TYPE WATER WHEEL GOVERNOR IN APPLETON WISCONSIN, INSTALLED IN 1909.
- WOODWARD HORIZONTAL TYPE WATER WHEEL GOVERNOR HISTORY.
- WOODWARD GOVERNOR COMPANY'S MOST POWERFULL GOVERNOR.
- WOODWARD GOVERNOR COMPANY CATALOGUE FROM THEIR FACTORY AT 658-660 RACE STREET, CIRCA 1908.
- WOODWARD GOVERNOR COMPANY CATALOGUE FROM 1908.
- WOODWARD FRICTION WATER WHEEL GOVERNOR FROM PATENT NUMBER 103,813.
- Woodward Company patent model photo from the archives.
- Woodward Company catalog cover from the Water Power District on Race Street
- WATER WHEEL GOVERNOR HISTORY.
- United States Patent Number 103,813.
- THE WOODWARD WAY. A HISTORY OF THE WOODWARD GOVERNOR COMPANY. ROCKFORD, ILLINOIS U.S.A. 1870-1995.
- The Woodward Governor Company had a long relationship with the James Leffel Company making hundreds of governors for thieir turbine water wheels.