Descent of Christopher Risdon
- Christopher Risdon was partner of Susanna Hill and father of Elizabeth Risdon
- Elizabeth Risdon was partner of John Berriman and mother of John Berriman
- John Berriman was partner of Mary Ann Webb and father 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