Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
Kensington pub index
The Campden Arms, at Hyde Park gate which is on the southern side of Kensington road. There is considerable detail on the British History survey site.
A listing of historical London public houses, Taverns, Inns, Beer Houses and Hotels in Kensington, London.
Residents at this address
1862/R Lawrence, Campden Arms, 18 Hyde Park Gate W/../../Post Office Directory
1867/Mrs Sarah Ann Lawrence, Campden Arms, 18 Hyde Park Gate, Kensington/../../Licensed
Victuallers Association
1869/R Lawrence,
Campden Arms, 18 Hyde Park Gate W/../../Post Office Directory