Statistics for occurrence #1 of “Thousand Islands” in entry johnston-william of Harper's Encyclopedia of United States History:

... easily persuaded by the American sympathizers in the movement to join in the strife. The leaders regarded him as a valuable assistant, for he was thoroughly acquainted with the whole region of the Thousand Islands , in the St. Lawrence, from Kingston to Ogdensburg. He was employed to capture the steamboat Robert Peel, that carried passengers and the mail between Prescott and Toronto, and also to seize the Gre...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Thousand Islands 4 4 0 0 0 user votes
Thousand Islands (Florida, United States) 2 2 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.