Descent of Joanna Perkin
- Joanna Perkin was partner of James Webb and mother of Richard Webb
- Richard Webb was partner of Elizabeth Martyn and father of Mary Ann Webb
- Mary Ann Webb was partner of John Berriman and mother of John Berriman
- John Berriman was partner of Mabel Hall and father of John Hall Berriman
- John Hall Berriman was partner of Violet Sybil Kirk and father of Heather June Berriman