I find this thread really interesting. Here's a pic of Dartmouth Road shops from number 55 upwards dating around 1900. Hope this link works!
The lane just before 55a which was Ted Christmas's builders yard still has a foundation stone on the right hand brick wall which was laid by his wife in 1900.
The first shopkeepers at my shop were Gregg and Spencer, upholsterers and cabinet makers from around 1900-1967, with Frederick Gregg and his family and nephew, Sidney Spencer living above the shop.
Steve Grindlay gave me this information and knows so much about local history, here's his blog.