- Woodward's most complicated jet engine fuel control system in the oldwoodward .com collection.
- The Oldwoodward.com's website front page information.
- The Oldwoodward.com website's front page information.
- The Oldwoodward.com website's front page information.
- The Oldwoodward.com website's front page information.
- The Oldwoodward.com website's front page information.
- The Oldwoodward.com website's front page information.
- The Oberdorfer Aluminum Foundry which made many of the Woodward housings closed in 2013.
- The next 100 years Woodward booklet, page 20.
- The latest vintage Woodward governor added to the oldwoodward.com collection.
- The Gisholt Machine Company's factory is located 8 miles from Brad's Dad's house in Madison, Wisconsin.
- The Gisholt Machine Company property in Madison, Wisconsin. 2.
- The Gisholt Machine Company property in Madison, Wisconsin.
- The Gisholt Machine Company office building in 2021.
- The Gisholt Machine Company history marker.