I wonder whether “Mary” was in fact Em(m)anuel North’s daughter Polly North b 1866.
She was registered and baptised as Polly, but most Pollys would have been officially Mary at that time and Sarah Anne Hood may have wrongly assumed the child’s mother was formally a Mary.
Obviously the birth certificate is required.
Polly North married Joseph Arthur Leech, Dec qtr 1895 Selby.