Hi Jennifer,
I have also come across two birth records of Francis Blake, born Longford 1798 and 1799. Both are recorded in the IGI with father William Blake and mother Elizabeth.
My connection comes in via a sister of Francis - Elizabeth Blake born Longford 1793, father noted as William Blake, mother not recorded. She appears to have married a John Williamson near Skipton, Yorkshire. The census records show her as born Longford Derbyshire 1793, which fits with the IGI birth record.
There are also family documents in the Nottinghamshire Archives which show William Blake (father of Francis and Elizabeth) marrying Elizabeth Phillips in Longford in 1791 (this ties in with IGI and have checked the marriage in the local record). William Blake is noted around 1812 as being a gent of Rilstone, Yorkshire. Rilstone is close to Skipton where my ancestors John Williamson and Elizabeth Blake were married in 1824.
Does your old family book contain any of these records which could corroborate my findings? I am trying to confirm that the Elizabeth Blake, daughter of William Blake, born Longford 1793 is the same Elizabeth Blake who married John Williamson in 1824 and was born Longford 1793.
The Nottinghamshire Archive records that I have copies of show a number of preceding generations which you may find interesting:
Marriage of William Blake to Elizabeth Phillips
Children of Rev Edward Phillips and Mary Radford (includes Elizabeth Phillips above)
Mary Radford's parents - Francis Radford & Elizabeth Hieron (and their children)
Elizabeth Hieron's father - John Hieron(and his children)
Regards
Mike