I didn't find anything in the Historical Hartford Courant except in 1805 an Ethan Curtis was on an unclaimed letter list at the post office in Farmington, CT, it indicates that his residence was in Bristol, CT.
But...I now see from the attached that apparently the Ethan Curtis family, you are concerned with, removed to Ohio as early as 1808. Found the excerpted text in the following book:
A genealogy of the Curtiss-Curtis family of Stratford, Connecticut. Compiled by: Harlow Dunham Curtis
Stratford, Conn :: Curtiss-Curtis Society, 1953, 609 pgs.
I am not related.