Seriven is the maiden name of one of our maternal great-great-great-great-great grandmothers, Catherine Seriven, although the identification is open to question. The sequence of surnames in the seven generations between us goes Seriven-Phillips-Phillips-Phillips-Phillips-Phillips-Rogers-Dwyer.
No information has been found on the Seriven surname, and only one Seriven ancestor has been tentatively identified, Catherine Seriven (b.1730). As far as is known, the family was from London.