Statistics for occurrence #1 of “Zzz” in chapter 23 of The Atlanta (Georgia) Campaign: May 1 - September 8, 1864., Part I: General Report.:

... Pepoon, First Lieutenant and Provost-Marshal. Zzz H. F. Temple, Captain and Acting Assistant Adjutant-General. Blue Springs, Tenn., May 3, 1864. Zzz H. F. Temple, Captain and Acting Assistant Adjutant-General.
...
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.