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.
St Giles pub history index
A listing of historical public houses, Taverns, Inns, Beer Houses and Hotels in St Giles in Fields, London. The St Giles in Fields , London listing uses information from census, Trade Directories and History to add licensees, bar staff, Lodgers and Visitors.
Residents at this address
1839/Nathaniel Crisp/../../../Pigots Directory
1841/N Crisp/../../../Post Office Directory
1848/James Crisp/../../../Post Office Directory
Morning Advertiser 23 April 1851 - Licence transfers
White Hart, Great White Lion street, James Crisp to James Pollard
1851/James Pollard/Licensed Victualler/43/Drayton Parsley, Buckinghamshire/Census
1851/Ann Pollard/Wife/48/Hurst, Berkshire/Census
1851/Ann G Pollard/Daughter/18/Hurst, Berkshire/Census
1851/Mary Pollard/Daughter/12/Hurst, Berkshire/Census
1856/George Beels/../../../Post Office Directory
The Era 31 October 1858 - Licence transfers:
White Hart, Great White Lion street, Alfred William Larmuth to William Harper