I know Dagenham well, having spent considerable time there in my first job, with British telecom, well - it was a short experience! The Ford car plant was then a major work provider for many, I am not so sure it is now.
Since starting Family History , I discovered one important part of my family left fairly prosperous farms, in the Kelvedon Hatch / Doddinghurst area, and ended as general traders in Whalebone Lane, Becontree Heath; before merging with my Suffolk Wildings in Romford.
[Dagenham includes the area of Becontree Heath in all Directories]
Dagenham 1839 Pigots Directory - Gentry & Clergy - Trade in 1839 Academies to Bricklayers , Butchers to Gardeners , Grocers to Plumbers , Saddlers to Wine Merchants & Miscellaneous Dagenham 1848 White Directory - Dagenham 1848 Private Residents & Commercial Traders
Dagenham 1867 Post Office Directory
Dagenham Historical Pubs, Inns & Taverns - Public Houses