Statistics for occurrence #1 of “Headquarters” in chapter 6, page 161 of G. S. Hillard, Life and Campaigns of George B. McClellan, Major-General , U. S. Army:

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the memorandum of its proceedings is here given in full:-- Headquarters , army of the Potomac, Fairfax Court-House, March 13, 1862. A council of the generals commanding army corps, at the Headquarters of the Army of the Potomac, were of the opinion-- I. That the e...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Headquarters (Washington, United States) 1,024 8 0 0 0 user votes
Headquarters (New Jersey, United States) 132 0 0 0 0 user votes
Headquarters (Kentucky, United States) 84 0 0 0 0 user votes
Headquarters (Arizona, United States) 2 0 0 0 0 user votes
Headquarters (Idaho, 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.