Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
Manchester pub history index
Directory of Pubs in the UK, historical public houses, Taverns, Inns, Beer Houses and Hotels in Manchester, Lancashire.
Residents at this address
1911/James Duffy/../../Slater’s Directory
1929/Barkley Dunne/../../Kellys Directory