- Woodward Governor Company's large gas turbine fuel control(1307 series).
- Woodward Governor Company's jet engine fuel control(1307 series).
- Woodward Governor Company location in 1981.
- WOODWARD COMMERCIAL GAS TURBINE ENGINE TYPE 1307 FUEL CONTROL.
- Woodward bulletin 40006. Table of contents, circa 1959.
- Woodward aircraft engine governor from 1934.
- The patent model of the first A.W. Woodward governor.
- SECOND EDITION IN 1907.
- Rockford, Illinois history.
- Rockford, Illinois history.
- Patent model picture 4.
- Patent model picture 3.
- Patent model picture 2.
- Patent model picture 1.
- Patent 103,813, circa 1870.