The most helpful was the free catholic records in the central library.
Baptism and Marriage for most churches in Manchester.
Drawers full of films clearly marked the advantage is godparents and witnesses, address etc. up untill 1939
Church of England Manchester Cathedral etc it really is comprehensive. You can spend hours searching micro film, newspapers and a coffee cafe in the basement,
Be prepared for shocks as previous generations were very secretive or just plain forgot.
Many of our ancestors died in both world wars it’s distressing because it’s your kin not just anybody on the news, Those records are available free
It turned out we are just mongrels from all over the place no aristocracy
best of luck with yours CBH