Statistics for occurrence #1 of “Zook” in chapter 12 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 8: Soldier Life and Secret Service.:

...gel, Franklin, and Stoneman relieved and sent elsewhere. They had lost, killed in battle, such valiant generals as Philip Kearny, Stevens, Reno, Richardson, Mansfield, Whipple, Bayard, Berry, Weed, Zook , Vincent, and the great right arm of their latest and last Commander—John F. Reynolds, head of the First Corps, since he would not be head of the army. They had inflicted nothing like such ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Zook 72 2 14 0 0 user votes
Paul Zook 28 0 2 0 0 user votes
Samuel K. Zook 28 0 10 0 0 user votes
S. K. Zook 20 0 2 0 0 user votes
Samuel Kosciuzko Zook 4 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.