Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
St Martins pub history index
The List of Masonic Lodges of 1740 - 1755 note that a masonic lodge met at the St George and Dragon, Castle street, Leicester Fields with a constitution date of June 26th 1740.
A listing of historical public houses, Taverns, Inns, Beer Houses and Hotels in St Martins in Fields, London.
Residents at this address.
1825/Mr Hall, George, Castle street, Leicester fields/../../Licensed Victuallers
Association
1827/John Hall, George, 2 Castle street, Leicester square/../../Pigots Directory
1832/Joseph Pitt, George, Castle street, Leicester square/../../Pigots Directory
1839/Smith Jobson Taylor/../../../Pigots Directory
1843/John Parragreen/../../../Post Office Directory
1846/O Owen, George, 45 Castle street, Leicester square/../../Post Office Directory
The Era 25 July 1847 - Transfers :
George, Castle street, Frederick White to John Hill
1848/John Hill/../../../Post Office Directory
1851/John Hill/Licensed Victualler/51/Devon/Census
1851/Dianah Hill/Wife/43/Chelsea, Middlesex/Census
1851/Ann Brooks/Daughter, Milliner/19/Hammersmith, Middlesex/Census
1851/Elizabeth Hill/Daughter, Barmaid/16/Hammersmith, Middlesex/Census
1851/Henry Hill/Son/12/Hammersmith, Middlesex/Census
1851/Alice Hill/Daughter/6/Hammersmith, Middlesex/Census
1851/Henry Hawkins/Potman/25/Drury Lane/Census
1851/Benjamin Foster/Potman/41/Bromley, Kent/Census
1851/Mary Boden/Cook/60/Notting Hill/Census
1851/George Bates/Lodger, Painter/35/Lambeth, Surrey/Census
1851/George Sopp/Lodger, Waiter/31/Petworth, Sussex/Census
1851/William Fern/Visitor, Clerk/35/Leeds, Yorkshire/Census
April 1856/John Stonnell/ Outgoing Licensee /../../The Era
April 1856/Thomas Frederick Harrison/ Incoming Licensee /../../The Era
1869/George & Robert Shield/../../../Post Office Directory
1874/G Shield/../../../LV Directory
1884/Algernon M Kelson/../../../Post Office Directory