Statistics for occurrence #1 of “Heintzelman” in chapter 18 of Maj. Jed. Hotchkiss, Confederate Military History, a library of Confederate States Military History: Volume 3, Virginia:

...d but Jackson's command before him only seeking an opportunity to escape, and ignorant of the position of Longstreet. Pope ordered a vigorous attack on Jackson's left by Sigel's corps, supported by Heintzelman , Reno and Reynolds. This attack was bold and vigorous, and from 6:30 to 10:30 there was a fierce contention between A. P. Hill and the Federals; but the latter were repulsed when, just as Lee was l...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
S. P. Heintzelman 835 42 21 2 0 user votes
Heintzelman 854 0 138 0 0 user votes
Samuel P. Heintzelman 366 0 12 0 0 user votes
S. V. Heintzelman 120 0 0 0 0 user votes
Mary L. Heintzelman 18 0 0 0 0 user votes
Rush B. Heintzelman 8 0 0 0 0 user votes
Samuel Peter Heintzelman 8 0 2 0 0 user votes
Mish T. Heintzelman 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.