Statistics for occurrence #1 of “Contreras” in chapter 3 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 10: The Armies and the Leaders.:

...before Vera Cruz. In the fighting that ensued he displayed a skill and bravery, not unmixed with rashness, that won him high praise from his superior. In the reconnaissances before the victory of Contreras , he specially distinguished himself, and this was also the case at the battle of Chapultepec, where he was wounded. Having already been brevetted major and lieutenant-colonel, he was now brevetted ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Contreras (Indiana, United States) 76 2 0 0 0 user votes
Contreras (New Mexico, United States) 148 6 0 0 0 user votes
Contreras (Louisiana, United States) 2 0 0 0 0 user votes
Contreras (Louisiana, United States) 0 0 0 0 0 user votes
Contreras (Spain) 0 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.