Statistics for occurrence #1 of “Nigger Hill” in chapter 10, page 74 of John F. Hume, The abolitionists together with personal memories of the struggle for human rights:

...t gave political freedom to several million people. But the platform of principles that was announced by the New England Anti-Slavery Society (the name adopted) in that little grimy schoolroom on Nigger Hill was, in at least some respects, a more remarkable
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Nigger Hill (Arkansas, United States) 0 0 0 0 0 user votes
Nigger Hill (Colorado, 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.