Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
I did wonder whether this was the early name for the White Horse, in Spiatlfields, but the 1841 census lists this in Bishopsgate.
Historical London public houses, Taverns, Inns, Beer Houses and Hotels.
Residents at this address
[ 28th December 1785, St Giles : Marriage of Isaac Hare, and Elizabeth Hill,
both of this parish ]
[ 7 December 1792/Insured: Isaac Hare, the White Horse, Moor Lane, victualler ]
29 October 1788/Insured: William Hill, The Rose and Crown, near Mile End turnpike, victualler; Other property or occupiers: the Coventry Cross, Sands Row, Petticoat Lane (Josiah Hill, victualler)/../../Sun Fire Insurance records at the LMA
6 October 15 1793, the baptism of Josiah Hill, son of Josiah Hill and Mary at St Botolph, Bishopsgate
1796 - 1797/Josiah Hill, 14 Petticoat lane, Bishopsgate - two pounds 15 shillings, London tax records
17 January 1798/Will of Josiah Hill, Victualler of Saint Botolph Bishopsgate Street , City of London/../../National Archives, Kew
The will refers to Josiah Hill, victualler, owning leaseholds in Petticoat lane, in Bishopsgate, leaving £250 to his wife, Rebecca ?,
and to his son in law, Isaac Hare, of Moor lane, London, victualler, executrix, and to his son Josiah Hill, now away abroad in the East Indies, £100; and to daughter, Elizabeth, wife of Isaac Hare, £100; and Mary Hill, living at Moor lane, spinster, £100.
1809/William Hoppell, Coventry Cross, Petticoat lane, Whitechapel/../../Holdens Directory
1827/Nicholas Adams, Coventry Cross, 10 Sandys row/../../Pigots Directory
1832/Nicholas Adams, Coventry Cross, Sandys row, Spitalfields/../../Robsons Directory
1836/David Taylor/../../../Pigots Directory
In 1839 there is a Joseph Sacker listed at the Three Colts, Cambridge road, Mile end road; and in 1842, at the Coventry Cross, Sandys row. In 1844, a marriage exists between a Joseph Sacker, licensed victualler, Poppins court, Strand and an Elizabeth Williams at St Bride, Fleet street. In 1845, he is at the Black Horse & Windmill, 5 Fieldgate street, Whitechapel
1842/Josh Sacker, Coventry Cross, Sandys row, Spitalfields/../../Robsons Directory