Had a closer look at Vale Road today. The choice is, either the 1911 map is wrong, or its not no. 42, or the road has been renumbered. The road is numbered east to west, starting at the Bournemouth Road end, so on the 1911 map, the first houses you come to are the 3 pairs of semi-detached, roughly in the middle. Today, these are numbered from 30 to 40, so 42 is the first detached house west of them. While it looks like it might date from the early 1900s it is not on the 1911 map. From the other threads, it sounds as if Mary Ann Cowell arrived nearer 1902 than 1911, so it seems unlikely that the map would have missed it. Looks like I will need to look at the old maps and directories in the Poole Museum to find more, and that won't happen this week. I will let you know if I find anything else.