Statistics for occurrence #1 of “Loudoun” in chapter 1.2, section c.1.2.18, page 34 of Southern Historical Society Papers, Volume 37.:

...
the morning of June 23, was again riding between the camps of the different corps in Fairfax and Loudoun . All was quiet, there was no sign of a movement. Hooker was waiting for Lee. * * The camps of the different corps were so far apart that it was easy to ride between them. After gathering the in...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Loudoun (Virginia, United States) 871 4 61 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.