William David Blackford born 1895 in Battersea, London was registered in the GRO at Fulham.
BLACKFORD, WILLIAM DAVID FRANCIS
GRO Reference: 1895 D Quarter in FULHAM Volume 01A Page 200
He must be Ann Francis's nephew
His parents appear to be William Robert Blackford and Elizabeth Francis registered as married in Wandsworth in June 1894
Don't know if this helps?
There is also a neice daughter of William Robert Blackford and Elizabeth Francis
BLACKFORD, BESSIE CECILIA FRANCIS
GRO Reference: 1897 S Quarter in KENSINGTON Volume 01A Page 142
According to free BMD she married a Benjamin Benjamin (could this be a Jewish connection??)
Marriages June 1917
Benjamin Benjamin Blackford Islington 1b 569
Blackford Bessie C Benjamin Islington 1b 569
Are any of these people buried in a Jewish Cemetery because that could also be a way to find information