Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
A listing of historical public houses, Taverns, Inns, Beer Houses and Hotels in Holborn - St Andrew, London.
Residents at this address
The Ogiby and Morgan map of 1676 lists the address A81 as 006-3. Black Swan Inn, Holborn, A81
Holborn. Marked on Ogilbys map - 006-3. Black Swan Inn, Holborn, A81.
A tradesmans token of 1662 states:
B1395. Obverse. THOMAS . DAY . AT . YE . BLACK = A Swan.
R. SWAN . AT . HOLBORN . BRIDG = HIS HALFE PENY.
Pepys mentions in his diaries:
Pepys refers to it in his diary on the 9th August 1668, when, on Lords Day "Up, and walked to Holborne, where got John Powell’s coach at the Black Swan, .."
“ June the 11th.
“ By the Commissioners for licensing and regulating of Hackney Coaches. “ Ordered that all such Coachmen whose names are not yet entered, and who do really intend to provide horses according to the Act of Parliament, and such convenient Coaches and servants as shall be approved by the Commissioners, and have no other Trade or occupation, shall appear before the Commissioners for that service on Monday, the 16th , at the Black-Swan, in Holbourn, at two in the afternoon, and bring in their Certificates that they have served as Hackney-Coachmen. -— Ja. Read."—Mercurius Public us, No. 23, June 5-12, 1662, p. 365.
Also the listing for the Maitland survey of London, written between 1732 and then in 1756, lists the Black Swan Inn yard, Holborn.
Looking at later maps, and the general build of this part of Holborn, the entrance appears to be at about 25 Holborn. This equates to a John Anderson and Co, distillers in 1832 and 1842. In 1893-96 map, there is a significant distillery at this site.