- HOOVER DAM.
- HARDY DAM.
- HARDY DAM.
- GRAND COULEE DAM HISTORY.
- GRAND COULEE DAM HISTORY.
- CORDEAUX DAM.
- CONOWINGO DAM AND POWER HOUSE WITH WOODWARD GOVERNOR SYSTEMS.
- CONOWINGO DAM AND POWER HOUSE WITH WOODWARD GOVERNOR SYSTEMS.
- A Woodward Hydro Governor History Project.
- A Woodward Hydro Governor History Project.
- A NIAGARA FALLS HYDRO POWER HISTORY PROJECT.
- A NIAGARA FALLS HYDRO POWER HISTORY PROJECT.
- A NIAGARA FALLS HYDRO POWER HISTORY PROJECT.
- A HYDRO-ELECTRIC POWERHOUSE HISTORY PROJECT.
- A HYDRO-ELECTRIC POWER PLANT HISTORY PROJECT.