Chris, the houses on the map you put up are in my opinion definitly Wellington Terrace, I am quite familiar with it and the road and houses are a fair distance back from Whetstone lane. The houses on your map, some still exist, a couple are in the Clifton road thread.
God help us, Come yourself, Don't send Jesus, This is no place for children.
Sorry Chris, I did mean Thomas Warrington, but I'd just been dealing with some correspondence from a Mrs Williamson. Comes of trying to do two things at once!
Perhaps the following modern map makes thinks a little clearer. I've outlined the area in blue that matches the built-up area on the Tithe map, and this reveals that the whole of Elm Grove is within the boundaries of plots 64 & 65. In fact the mysterious gate post is right at the top corner of plot 64, and was probably at the entrance to the yard or garden of Thomas Warrington's house.
Well done Bert1. That's perseverance spending over 11/12 years searching for that map. could you please put where you found it and its date, to save me a few minutes searching