This is the first I have heard of this Prudence Montooth.Until reading this post I thought that there was no one in colonial America using the Montooth spelling.Wonder whether there could be a relationship between my William Montooth, who was born in Ireland in 1782 or 1783 (age 67 on the 1850 census), and Prudence.
Perhaps William's parents were in the US by 1790, as there's an individual listed on the 1790 census of Charlestown, Cecil County, Md. with a printed name that looks as though it could be a mangled version of Wm Montooth.(This would, of course, be a Wm Montooth Sr.)They're not there in 1800.
According to some Maryland history I read, Charlestown was giving Baltimore a run for its money for a while, but it fell out of favor in the 1790's and declined to its present size very quickly.Entire houses were pulled down with the frames put on ships and then rebuilt in Baltimore.Soon thereafter there's a mention of a "widow Montooth" in Baltimore; presumably the mother of the William (my ancestor) who married Margaret Hannan at St. Paul's there in 1810.