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.
Clerkenwell pub history index
Historical London public houses, Taverns, Inns, Beer Houses and Hotels.
Residents at this address.
1820/John Clarkson/victualler/../../Sun Fire Office
records held at the London Metropolitan Archives *
1839/A Folkard/../../../Pigots Directory
1841/A Folkard/../../../Post Office Directory
1841/Anthony Folkard/Publican/45/../Census *
1841/Walter Hellingdale/Servant/20/../Census
1848/Anthony Folkard/../../../Post Office Directory
1851/Anthony Folkard/../../../Kellys Directory
*
1851/Anthony Folkard/Licensed Victualler, Widow/52/Yoxford, Suffolk/Census
1851/Ann Armrod/Servant, Widow/34/Pullin, Suffolk/Census
* Provided By Ewan