- Woodward Governor Company's shop order #1845, circa 1909.
- Woodward Governor Company's patent number 3,251,373.
- Woodward Governor Company's patent number 3,251,373.
- Woodward Governor Company's patent number 3,251,373.
- Woodward Governor Company's patent number 2,452,088.
- Woodward Governor Company's horizontal type F water wheel governor
- Woodward Governor Company's fuel control patent number 2,602,654.
- Woodward Governor Company Shop Order 3155, SN # 5719, circa 1926.
- Woodward fuel control governorl patent number 2,602,654. Page 5.
- Woodward fuel control governorl patent number 2,602,654. Page 4.
- Woodward fuel control governorl patent number 2,602,654. Page 3.
- Woodward fuel control governorl patent number 2,602,654. Page 2.
- Woodward CSSA propeller governor manual 33194.
- Woodward catalog of their new oil-pressure governor for turbine water wheels, circa 1914.
- What is a AC MOTOR?