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 Bart pub history index
A listing of historical public houses, Taverns, Inns, Beer Houses and Hotels in Saint Bartholomew, Central London. The Saint Bartholomew,; London listing uses information from census, Trade Directories and History to add licensees, bar staff, Lodgers and Visitors.
Residents at this address
1871/John Garnham/Licensed Victualler/28/Seven Oaks/Census
1871/Louisa Garnham/Daughter/6 months/Middlesex/Census
** Provided By Stephen Harris