- From the Woodward 75 year anniversary history book, circa 1945.
- Bulletin 25011A page 9.
- BULLETIN O1024 page 5.
- BULLETIN O1024 page 4.
- BULLETIN O1024 page 6.
- BULLETIN O1024 page 8.
- BULLETIN O1024 page 7.
- Main page of the Oldwoodward history web-site.
- Robert Moses Niagara Hydro-Electric Power Plant.
- Woodward Turbo Prop Constant Speed governor schematic drawing.
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- 25
- 21
- 31
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