Otis says Isaac married Elizabeth Jenkins and had seven children. White says that the children were all the offspring of Isaac and Mary Crocker. White says there is evidence that she lays out that was previously unknown, which includes unknown to Otis. She also lays out the source of the childrens' names, some of which are named after Mary's family members. White does not mention Elizabeth Jenkins at all. I'm inclined to believe White is correct here. In White, Volume 2, page 77, in the references section, it says the ID of Elizabeth Jenkins was erroneous.