Statistics for occurrence #1 of “Jack” in chapter 6.14 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: The Opening Battles. Volume 1.:

...ff, Jack's mother, rushing toward him with a bundle tied like a wheat-sheaf, called out in a most pathetic voice, Jack! Jack! you've forgotten to take your pennyroyal. We all laughed, and so did Jack , and I think the laugh helped him more than the cry did. Everybody had said his last word, and the cars were off. Handkerchiefs were waved at us from all the houses we passed; we cheered till we were...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Jack 825 20 17 2 0 user votes
James Jack 33 0 1 0 0 user votes
Thomas M. Jack 32 0 4 0 0 user votes
T. M. Jack 26 0 4 0 0 user votes
Charles E. Jack 19 0 3 0 0 user votes
E. A. Jack 12 0 0 0 0 user votes
Liverpool Jack 10 0 0 0 0 user votes
Jeremiah Jack 6 0 0 0 0 user votes
Stonewall Jack 6 0 0 0 0 user votes
— Jack 6 0 0 0 0 user votes
William Jack 5 0 1 0 0 user votes
Alonzo G. Jack 4 0 0 0 0 user votes
Charles Jack 3 0 1 0 0 user votes
E. R. Jack 2 0 0 0 0 user votes
Gofney Jack 2 0 0 0 0 user votes
Harlow Jack 2 0 0 0 0 user votes
John Jack 2 0 0 0 0 user votes
John T. Jack 2 0 2 0 0 user votes
L. Jack 2 0 0 0 0 user votes
Patrick C. Jack 2 0 0 0 0 user votes
H. Jack 1 0 1 0 0 user votes
John E. Jack 1 0 1 0 0 user votes
Thomas Jack 1 0 1 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.