Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
Westminster St James index
All of Swallow street except the lowest section was demolished to make way for Regent street in about 1815. Also the Crown & Thistle.
Historical London public houses, Taverns, Inns, Beer Houses and Hotels.
Residents at this address.
31 March 1789/Insured: John Angle, the Thistle and Crown, Swallow Street, victualler
31 March 1808/Insured: Samuel Coleman, the Thistle and Crown, Swallow Street, victualler
1809/Samuel Coleman, Crown & Thistle, Swallow street/../../Holdens Directory
1810 Lockies describes "Crown and Thistle Court, Swallow Street, at 46, near the middle of the North side, two doors West from Beak Street"
1811/John Hart, Crown & Thistle, Swallow street/../../Holdens Directory