- Amos Walter Woodward's patent governor from 1870.
- The Tinker Cottage in Rockford, Illinois.
- Amos Woodward's first friction water wheel governor.
- Builder name plate data for the GE gas turbine locomotive.
- Amos Walter Woodward's first governor model.
- A vintage Woodward gas turbine jet engine governor patent.
- Patent number 1,476,914. 2 Sheets-Sheet 1.
- Bartech Company's Woodward Governors on the test stand.
- A map of the Kilbourn(Wisconsin Dells) dam location in 1866.
- The Mill City hydro-electric power house in 1897.
- Turbine water wheel patent number 341,577. Sheet 1 of 3.
- Patent number 341,577. 1
- Patent number 341,577. 2
- Woodward... At the Heart of the System Since 1870.
- Woodward UG25 Actuator unit.