- The Oldwoodward.com website's front page information.
- View across the Rock River showing part of the Water Power District.
- An Allis-Chalmer Company's Plate Steel Spiral Casting for 70,000 hourse-powered Niagara Falls hydraulic turbine unit.
- The Gisholt Machine Company history marker.
- The Woodward Governor Company's Mill Street factory assembly floor in the 1930's.
- History of Loves Park, Illinois.
- History of the Harlem Township in Winnebago County.
- SHUTDOWN SOLENOID MANUAL FOR UG SERIES ENGINE GOVERNORS.
- Looking back at the history of jet engine fuel control history.
- The Oldwoodward.com website's front page information.
- A Woodward factory photo showing the top area of a CFM56-3 series fuel control.
- Harlem Township History.
- The Oldwoodward.com website's front page information.
- The Oldwoodward.com website's front page information.
- All the Gisholt Machine Company buildings are still standing in 2021.