Just to add...
Death certificate arrived this morning, date 1966, address 223 Crescent Road, Crumpsall. Not 123!
There seems to be a lot of confusion as the modern North Manchester Hosp is off Delauneys Road, but the old Springfield Hospital, previously Park Hospital, Previously Crumpsall Workhouse, was on Crescent Road. Different sites completely. My relative's cause of death suggests that she was in a hospital, or a geriatric nursing hospital, at the time.
Just the address at 223, not 123, is intriguing!
Hilary