Rachel Thornell - Who was Rachel Thornell?

There was another early Thornell (1790's) in Cincinnati? Was it a relative or in-law? Was Thornell her maiden name or was she the widow of a Thornell when she married Thomas Hubbell? He lived in NJ, then VA, then came down the Ohio to Cincinnati by 1792 when it was still a log cabin village with a palisaded fort. It seems likely that she could have been someone else's widow. Anyone know when she married Thomas Hubbell? What is the first record of her?