original_query: Who were the recent settlers in Upper Canada from the United States with no obvious loyalties to the Crown?
query: Who were the recent settlers in Upper Canada from the United States with no obvious loyalties to the Crown during the War of 1812?
answer: During the War of 1812, Upper Canada had a significant number of non-Loyalist American settlers who had immigrated due to land grants.  These settlers did not have obvious loyalties to the Crown.