Further research probably can only be done on site in England and some at least must be done in London. The notation after the person's first name denotes their generation. The generations are going back from Mary 1 Dickens, and are noted as letters rather than numbers. The sources are mentioned in the body of the text. Further description of some sources is in the endnotes.
All locations are in England, and are in Northamptonshire unless otherwise indicated.
Family histories often suggest a connection with the author Charles Dickens. However he was born in 1812 near Portsmouth in Hampshire, so if there is any connection it would not have been a close one. The record notes duty paid . The parish register records her birth but no baptism. This date is consistent with her age and birthplace in census records and at her death.