Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
Harrow pub history index
Randomly listed as in Sudbury, Wembley in 1926 and 1937
A listing of historical public houses, Taverns, Inns, Beer Houses and Hotels in Middlesex.
Residents at this address
1866/G Woodland/../../../Post Office Directory
1874/Thomas Cowley/../../../Post Office Directory
1878/Thomas Cowley/../../../Post Office Directory
1881/Thos Cowley/Inn Keeper/52/Albaston, Derby/Census
1881/Elizabeth Cowley/Wife/52/London, Middlesex/Census
1881/Richard Cowley/Son/25/Finchley, Middlesex/Census
1881/Elizabeth A Cowley/Daughter/21/London, Middlesex/Census
1881/Lydia C Cowley/Daughter, Dressmaker/15/London, Middlesex/Census
1881/William Cowley/Son/12/London, Middlesex/Census
1881/Alice Cowley/Daughter/10/Sudbury, Middlesex/Census
1881/Walter Bannes/Potman/17/Street, Somerset/Census
1890/William Gregory/../../../Post Office Directory
1891/Walter J Heal/Publican/30/Tiverton, Devon/Census
1891/Lillie Heal/Wife/33/Marylebone, Middlesex/Census
1891/Robert Fox/Lodger, Tailor/50/Marylebone, Middlesex/Census
1894/Walter J Heal/../../../Post Office Directory
1896/Harry Groom/../../../Post Office Directory
1899/Harry Groom/../../../Post Office Directory
1901/Harry Groom/Licensed Victualler/31/Harrow, Middlesex/Census
1901/Kate E Groom/Wife/26/Harrow, Middlesex/Census
1901/Kate E Groom/Daughter/4/Wembley, Middlesex/Census
1901/Harry Groom/Son/3/Wembley, Middlesex/Census
1901/Amy Groom/Daughter/1/Wembley, Middlesex/Census
1911/Harry Groom/Licensed Victualler/41/Harrow, Middlesex/Census
1911/Kate Elizabeth Groom/Wife, Assistant//Harrow, Middlesex/Census
1911/Kate Groom/Daughter, Assistant/14/Wembley, Middlesex/Census
1911/Harry Groom/Son, Assistant/13/Wembley, Middlesex/Census
1911/Amy Groom/Daughter/11/Wembley, Middlesex/Census
1911/Edward Groom/Son/10/Wembley, Middlesex/Census
1911/Frank Groom/Son/8/Wembley, Middlesex/Census
1911/Charlie Groom/Son/6/Wembley, Middlesex/Census
1911/Stanley Groom/Son/4/Wembley, Middlesex/Census
1914/Harry Groom/../../../Post Office Directory
1926/Henry Groom/../../../Post Office Directory
1937/Frank Groom/../../../Post Office Directory