Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex. If you can contribute to the site, send me some details to Kevan, along with some description of the specific property.
Canning Town Index
Holy Trinity ecclesiastical parish was formed in 1868 from the parish of West Ham.
Charles Dickens - Household Works -Volume XVI - 1857 - Londoners over the Border
Canning Town 1862 Commercial Traders (part of the West Ham Directory)
Canning Town 1874 Post office Directory - Private Residents - Commercial Traders
Canning Town 1878 Post Office Directory - Private Residents - Commercial Traders
Canning Town 1886 Commercial Traders
Canning Town 1896 London Northern Suburbs Street Directory
Canning Town 1902 Kellys Street Directory - NEW & coming soon
Canning Town 1914 commercial directory by surname
Seventy seven historical Public Houses in Canning Town