Statistics for occurrence #1 of “Frederick counties” in chapter 1.31 of Southern Historical Society Papers, Volume 25.:

...mpaign in Maryland in 1862, the 9th Virginia Cavalry was attached to the brigade commanded by General Fitz Lee. After nine days spent among the fine hay and rich yellow cornfields of Montgomery and Frederick counties , the regiment crossed the Catoctin mountain at Hamburg, at dawn on the morning of September 14th. Hamburg was a rude and scattering village on the crest of the mountain, where the manufacture of br...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† 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.