Statistics for occurrence #1 of “Rockingham” in chapter 7 of George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 6, 10th edition.:

...rust; showing him all Chatham's letters, and giving him leave to treat with his own old associates, though Grafton desired to effect through Gower a junction with the friends of Bedford. But Rockingham , who never opened his eyes to the light that was springing from the increased intelligence of the masses, and left out of view that all his glory as a statesman had come from his opposition to Grenvi...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Rockingham (Virginia, United States) 233 0 31 0 0 user votes
Rockingham (North Carolina, United States) 12 0 10 0 0 user votes
Rockingham (New Hampshire, United States) 5 1 3 1 0 user votes
Rockingham (Georgia, United States) 0 0 0 0 0 user votes
Rockingham (Iowa, United States) 0 0 0 0 0 user votes
Rockingham (Missouri, United States) 0 0 0 0 0 user votes
Rockingham (New Hampshire, United States) 0 0 0 0 0 user votes
Rockingham (New Jersey, United States) 0 0 0 0 0 user votes
Rockingham (Ohio, United States) 0 0 0 0 0 user votes
Rockingham (United Kingdom) 0 0 0 0 0 user votes
Rockingham (Western Australia, Australia) 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.