Statistics for occurrence #1 of “Headquarters” in chapter 8 of Alfred Roman, The military operations of General Beauregard in the war between the states, 1861 to 1865:

... Carolina Volunteers, now on Sullivan's Island, none of the regiments are completely supplied with the regulation number of forty rounds. The 23d Regiment, stationed some seven miles from Brigade Headquarters , is extremely deficient, and has no immediate means of replacing any necessary consumption, as all ordnance wagons and ordnance sergeants are attached to Brigade Headquarters, and not with their resp...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Headquarters (Washington, United States) 1,024 466 0 0 0 user votes
Headquarters (New Jersey, United States) 132 124 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.