The two women, both named Matilda Caroline, are not related. My grandmother Matilda Caroline Brightwell was very definitely a Brightwell. Your husband's ancestor was a Pouncey, the daughter of Daniel N. Pouncey and Nancy Cleghorn. Six children were born of this union and Matilda Caroline was probably the eldest. Will be happy to provide additional information on Daniel N. in return for the info you have on the descendents of Matilda Caroline.