- Patents, page 5.
- Patents, page 4.
- Patents, page 3.
- Page 29. Hydro power history project.
- Mechanicville Hydroelectric Plant
- Looking back in Prime Mover Control history.
- Lombard type T hydraulic governor.
- INTERIOR VIEW SHOWING GENERATOR UNIT 2 IN PLACE AND SWITCH BOARD BEING WIRED, c. 1918. - Dam No. 5 Hydroelectric Plant, On Potomac River, Hedgesville, Berkeley County, WV HAER WVA,2-HEDVI.V,1-28.tif
- Hydroelectric Power Plant at Dam # 5 on the Potomac River.
- History in the making!
- George Westinghouse.
- George Westinghouse's patents.
- George Westinghouse at work.
- George Westinghouse and his patents.
- General Electric Company ad from 1919.