Hi,
There doesn't appear to be any central resources for Pubs & Landlords/Landladies..
Some local councils hold Licensed Victuallers records and most councils
have thousands of photos which may include pics the premises you are researching but you would have to ask and as with most large cities/towns it may be chargable.
Also, there were numerous small and local breweries at the turn of the last century which have been swallowed up, merged and amalgamated into the corporate businesses of today. So even if you know initial brewery details its a long hard slog..... if indeed the records are still available.
One way of gathering info (as you know the pubs modern name) may be to write directly to the current landlord and or Owner to see if they are willing to provide details from the deeds of the property. This would show when the property was built, the owners throughout the years..hopefully show your relatives.............
If your relatives were not the owners then maybe chasing up the licensed persons (Licensed Victuallers) records and/or Ratepayers/Electoral rolls may shed some light upon your queries......
Pizzanania is a funny 1901 name for a pub ....have you checked with the local Library..........I'm sure they would have a record of of a pub with that name circa 1901.
hope this helps
regards.
SKIPPY