- A Lucas Aerospace Company advertisement.
- Ingersoll Milling Company historical building in 1897.
- The Woodward Company's new 250 million dollar building campus in 2016.
- The Woodward Company's 1942 Legacy factory in Loves Park, Illinois.
- Rockford downtown in the 1970's.
- Rockford Illinois Water Power District.
- LUCAS AEROSPACE LTD COMPANY HISTORY.
- LUCAS AEROSPACE LTD COMPANY HISTORY.
- LUCAS AEROSPACE LTD COMPANY HISTORY.
- Rockford Illinois Herrick Cobblestone house.
- Lucas Aerospace Company's fuel control components on display.
- Simplify Your Life with Woodward Energy Controls.
- The John S. Barns Company history advertisement in 2017.
- ANALYSIS OF A GOVERNOR-ENGINE SYSTEM.
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