The Saint Augustine Blues were a militia unit formed on May 12, 1860 in St. Augustine, Florida during the period of political instability in the United States preceding the outbreak of the American Civil War. The Blues officially entered the Confederate Army at Ft. Marion on August 5, 1861 and were designated Company B of the recently organized Third Florida Infantry.

See Flag of the Saint Augustine Blues, “Any Fate But Submission” at:
http://en.wikipedia.org/wiki/Saint_Augustine_Blues

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St. Augustine Independent Blues militia flag, now at the Museum of the Confederacy.

http://civilwartalk.com/threads/st-augustine-independent-blues-militia-flag-now-at-the-museum-of-the-confederacy.89177/