Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
Potters Bar pub history index
A listing of historical public houses, Taverns, Inns, Beer Houses and Hotels in Middlesex. The Middlesex listing uses information from census, Trade Directories and History to add licensees, bar staff, Lodgers and Visitors.
Residents at this address
1933/Herbert Rogers, Bridge, Station road, Potters Bar/../../Post Office Directory
1937/H. Rogers, Bridge House, Mutton lane, Potters Bar/../../Post Office Directory