- History of the Cliff Papper Company in Niagara Falls, New York.
- 2
- 3
- 4
- 5
- Niagara Falls hydro history.
- Circa 1913 advertisement.
- An advertisement from the Cliff Papper Company from 1913.
- HYDROELECTRIC POWER PLANT MAP OF THE U.S.A.
- HYDROELECTRIC POWER PLANT MAP OF THE U.S.A.
- 149
- SUMMERY TABLE B.
- HYDROELECTRIC POWER RESOURCES OF AMERICA HISTORY PROJECT.
- HYDROELECTRIC POWER RESOURCES OF THE U.S.A.
- WISCONSIN HISTORY MAP.