Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex. If you can contribute to the site, send me some details to Kevan, along with some description of the specific property.
Directory of Pubs in the UK, historical public houses, Taverns, Inns, Beer Houses and Hotels in Huntingdonshire, The listing uses information from census, Trade Directories and History to add licensees, bar staff, Lodgers and Visitors.
Here are the first few entries for Huntingdonshire - many pages are placeholder pages awaiting additional data:
Huntingdon 1864 (A to E) (F - P) (Q - W)
Abbotsley ; Abbots Ripton (& Wennington) ; Alconbury ; Alconbury Weston ; Alwalton
Barham ; Bluntisham (& Earith) ; Brampton ; Brington ; Broughton ; Buckden ; Bury ; Bythorn
Easton ; Ellington ; Elton , Eynesbury
Farcet ; Fen Stanton ; Fletton ; Folksworth
Glatton ; Godmanchester ; Grafham ; Great Gidding ; Great Gransden ; Great Paxton ; Great Raveley ; Great Staughton ; Great Stukeley
Hail Weston ; Hartford ; Hemingford Abbots ; Hemingford Grey ; Hilton ; Holme ; Holywell (& Needingworth) ; Houghton ; Huntingdon
Keyston ; Kimbolton (& Stonely) ; Kings Ripton
Leighton Bromswold ; Little Paxton ; Little Stukeley
Offord Cluny ; Offord Darcy ; Old Hurst ; Old Weston ; Orton Longueville ; Orton Waterville
Sawtry ; Somersham ; Southoe , Spaldwick ; Stanground ; Stibbington ; Stilton ; St Ives ; St Neots ; Stow Longa
Warboys ; Waresley ; Winwick ; Wistow ; Woodhurst ; Woodstone ; Woodwalton ; Wyton