The Bonnie Blue Flag originated in the West Florida Republic in 1810. The colors "Bonnie Blue" and white correspond with the national colors of Scotland. But this maybe just a coincidence-- or not since a great many Americans and Natives Americans living in the Mississippi Territory, who made up the Republic of West Florida, where of Scots/Irish descent. The 1745 Jacobite Rebels wore Bonnie Blue Bonnets with white cockades.
http://www.crwflags.com/fotw/flags/us-wstfl.html
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David Upton