- Woodward Governor Company controls in a 1921 S. Morgan Smith Company catalog..
- Woodward...At the Heart of the Energy Control System Since 1870.
- WGC ANNUAL REPORT 1987
- Rockford history saved for the 21st. century.
- The oldwoodward.com web-site theme is "WE LOVE MECHANICAL THINGS"
- WGC 1987. 2
- WGC CTL NOVEMBER 1985
- Woodward series PGE diesel engine governor history.
- WOODWARD PG LOCOMOTIVE GOVERNOR.
- WGC PMC CTL MAY 1989
- WGC PMC CTL SECOND QUARTER 1999
- WOODWARD PG RAILROAD DIESEL ENGINE GOVERNOR.
- 1978 PMC ANNUAL ISSUES.
- 1921 ADVERTISEMENT ABOUT THE ALLIS-CHALMERS MFG COMPANY.
- WGCPMC CTL OCTOBER 1993