Statistics for occurrence #1 of “General Heintzelman” in entry bull-run-battles-of of Harper's Encyclopedia of United States History:

... General Heintzelman
The gathering of Confederate troops at Manassas Junction (q. v.) required prompt and vigorous movements for the defence of W...
Max. Freq. Min. Freq.
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† 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.