Hi,
Where exactly did you get Mary's birth date from? Was it the 1939 register or have you already seen her baptism entry?
If you haven't seen her baptism entry, she was baptised on 28th May 1882 in Bingley. Her birth date on the entry matches the one you have provided. Her mother was Emma Snowden, spinster, whose residence was George St.
This is the only matching birth registration I can find:
SNOWDEN, MARY WIDDAP -
GRO Reference: 1881 S Quarter in KEIGHLEY Volume 09A Page 177
Queenie
