Statistics for occurrence #1 of “Niagara” in chapter 7 of Wendell Phillips, Theodore C. Pease, Speeches, Lectures and Letters of Wendell Phillips: Volume 2:

... the robber castles of the Rhine,--but this I do know: God has piled our Rocky Mountains as ramparts for freedom; He has scooped the valley of the Mississippi as the cradle of free States, and poured Niagara as the anthem of free men. [Loud cheers.]
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Niagara (Missouri, United States) 2 0 0 0 0 user votes
Niagara 0 0 0 0 0 user votes
Niagara (Kentucky, United States) 0 0 0 0 0 user votes
Niagara (North Carolina, United States) 0 0 0 0 0 user votes
Niagara (North Dakota, United States) 0 0 0 0 0 user votes
Niagara (Oregon, United States) 0 0 0 0 0 user votes
Niagara (Pennsylvania, United States) 0 0 0 0 0 user votes
Niagara (Virginia, United States) 0 0 0 0 0 user votes
Niagara (Wisconsin, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.