Statistics for occurrence #1 of “Halleck” in chapter 22, page 230 of John Dimitry , A. M., Confederate Military History, a library of Confederate States Military History: Volume 10.1, Louisiana:

...mdash;after a wonderful march of fifty miles in thirty-six hours—were dashing through it, wrecking the Union supplies at Bristoe and Manassas Junction, and sending a thrill of horror as far as Halleck 's office. Once on his old territory, Jackson
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Butler Halleck 27 27 1 1 0 user votes
H. W. Halleck 5,082 0 120 0 0 user votes
Halleck 1,974 0 538 0 0 user votes
Henry W. Halleck 1,400 0 40 0 0 user votes
Henry Wager Halleck 533 0 15 0 0 user votes
Fitz-Greene Halleck 100 0 0 0 0 user votes
W. H. Halleck 94 0 4 0 0 user votes
Gen Halleck 34 0 0 0 0 user votes
M. G. Halleck 20 0 0 0 0 user votes
Joseph Halleck 9 0 3 0 0 user votes
Gens Halleck 8 0 0 0 0 user votes
A. J. Halleck 7 0 1 0 0 user votes
Benjamin Buel Halleck 6 0 0 0 0 user votes
Fitz-Green Halleck 4 0 0 0 0 user votes
Genenal Halleck 4 0 0 0 0 user votes
Isaac Halleck 4 0 0 0 0 user votes
W. Halleck 4 0 0 0 0 user votes
Charles Halleck 2 0 0 0 0 user votes
Ebenezer Halleck 2 0 0 0 0 user votes
George Halleck 2 0 0 0 0 user votes
Major-Gen Halleck 2 0 0 0 0 user votes
H. Wager Halleck 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.