- OLDEST PRINTED WOODWARD RELAY-VALVE OIL PRESSURE GOVERNOR MANUAL, CIRCA 1914
- Elmer E. Woodward's new hydraulic water wheel governor was manufactured in this factory until 1940..
- 1912 application of Elmer Woodward's new hydraulic water wheel governor.
- WOODWARD'S NEW TYPE OF OIL PRESSURE WATER WHEEL GOVERNOR GATESHAFT TYPE CIRCA 1917-xx
- Woodward Governor Catalogue M showing the new factory on Mill Street.
- The Woodward Governor Company on Mill Street in Rockford(1910-1941).
- The Woodward Company is going strong in Rockford in 2017. History in the making!
- TEXTILE WORLD 1909.
- Woodward type D mechanical governor application.
- Woodward at 660 Race Street in the RKFD Water Power District.
- WOODWARD HYDRAULIC GOVERNORS. NEW FOR THE YEAR 1912.
- Elmer Woodward's Power Control publication from 1911.
- Woodward Governor Company's product catalog, circa 1964.
- RELAY- VALVE OIL PRESSURE GOVERNOR CATALOG, CIRCA 1912.
- Bulletin 09026