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

...heastward, also to Staunton. To meet these threatened movements, Gen. R. E. Lee, when Governor Letcher's call for troops was issued, began to organize opposing columns of defense in the vicinity of Norfolk , in front of Alexandria and Washington, at Harper's Ferry in the Shenandoah valley, at Grafton on the Baltimore & Ohio, and below Charleston in the Kanawha valley, with intermediate forces in obs...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Norfolk (Virginia, United States) 4,668 135 316 1 0 user votes
Norfolk (Virginia, United States) 199 0 7 0 0 user votes
Norfolk (United Kingdom) 42 0 8 0 0 user votes
Norfolk (Connecticut, United States) 8 0 6 0 0 user votes
Norfolk (Colorado, United States) 0 0 0 0 0 user votes
Norfolk (Mississippi, United States) 0 0 0 0 0 user votes
Norfolk (Nebraska, United States) 0 0 0 0 0 user votes
Norfolk (New York, United States) 0 0 0 0 0 user votes
Norfolk (Oregon, 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.