According to the Coast Guard website, the earliest antecedent of the USCG, the Lighthouse Service, was founded in 1789. The Revenue Cutter Service was authorized by congress in 1790, under the Treasury Department. The name "Coast Guard" didn't come into existence until 1915., when the Revenue Cutter Service and the Life-Saving Service were combined. Do you have evidence that it existed prior to 1787?
otoh, do you have evidence that the CG was NOT in service (under one of it's SEVERAL names), inasmuch as the USCG itself CLAIMS service in the AMERICAN REVOLUTION????
one wonders what your claim to fame here on FR will be???? (perhaps posting apologist nonsense & meaningless bilge for the unionist propaganda machine????)
so far i have seen anything from you that required either KNOWLEGE and/or THOUGHT.
free dixie,sw