On May 5, 1957, two English sisters, Joanna and Jacqueline, were killed in a car accident in the parish of Hexham. Two years later, their mother gave birth to twins, Gillian and Jennifer, who were identical in almost every way. Jennifer though had birthmarks that resembled similar marks on her deceased sister, Jacqueline.
Not long after the twins were born, the family moved away to a different part of the country. As time went on, Gillian and Jennifer began asking for toys that their elder passed sisters used to favour, and when the family moved back to Hexham, the twins supposedly recognized landmarks they had no way of having seen before.
Eventually, these incidents trickled off, but it was enough evidence for parapsychologist Dr. Ian Stevenson to write about the Pollock twins in a book about reincarnation, claiming they were reincarnations of their older sisters.