- Letter to Woodward about the value of an obsolete governor, page 2.
- Letter to Woodward about the value of an obsolete governor.
- Woodward mechanical governor history letter, page 2.
- Woodward mechanical governor history letter, circa 1965.
- Woodward Governor Company history.
- Amos Walter Woodward painting for the history books.
- Elmer Woodward's smallest and largest governors.
- Woodward Governor Company history.
- First Woodward governor school held in 1927.
- Vintage Hydroelectric Power Plant history.