Statistics for occurrence #1 of “Zzz” in chapter 93 of The Atlanta (Georgia) Campaign: May 1 - September 8, 1864., Part I: General Report.:

... I am, general, very respectfully, your obedient servant, Jef. C. Davis, Brevet Major-General, Commanding. Brig. Gen. W. D. Whipple, Chief of Staff, Department of the Cumberland. Zzz Zzz Jef. C. Davis, Brevet Major-General, Commanding. headquarters Fourteenth Army Corps, Jonesborough, Ga., September 3, 1864.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† ZZZ 3,532 210 0 0 0 user votes
Interrogavi Terramn Zzz 4 0 0 0 0 user votes
March Zzz 2 0 0 0 0 user votes
S. ZZZ 2 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.