Statistics for occurrence #1 of “Millboro” in chapter 4 of Maj. Jed. Hotchkiss, Confederate Military History, a library of Confederate States Military History: Volume 3, Virginia:

... the lines of communication from northwest Virginia to Staunton by way of Huttonsville, from Huttonsville to Lewisburg on the Kanawha line, and between these towns to the Virginia Central railroad at Millboro . He really held the gates to northwestern Virginia. Reinforced by the First Georgia under Colonel Ramsey, Garnett made Laurel hill more defensible by blocking with fallen trees all the country ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Millboro (Virginia, United States) 23 8 1 0 0 user votes
Millboro (North Carolina, United States) 0 0 0 0 0 user votes
Millboro (South Dakota, 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.