Before 1880, there was a time when Odessa was known as Cantwell's Bridge. To my knowledge, Middletown was always known as Middletown. Delaware had a military training camp there for the Spanish American War. The 1st Delaware trained there. I know of this only because my Grandfather was there and I have a photo to prove it ..There may be some confusion about the Appoquinimik Friends Meeting that was at Odessa (Cantwell's Bridge). There is no town of "Appoquinimik" but, the is a creek of that name.