Statistics for occurrence #1 of “De Castro” in entry fremont-john-charles of Harper's Encyclopedia of United States History:

... over to the British government. It was also rumored that General de Castro intended to destroy all the American settlements on the Sacramento River. Fremont hurried back to California, and found De Castro on the march against the settlements. The settlers flew to arms, and joined Fremont's camp, and, under his leadership, these settlements were not only saved, but the Mexican authorities were driven...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
De Castro 2 2 2 2 0 user votes
Don Joao De Castro 4 0 0 0 0 user votes
Don Adolfo De Castro 2 0 0 0 0 user votes
J. G. De Castro 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.