Thank you VERY much to Alan Boyd, KGarrad, and hanes teulu !!
Through finding that Roselea, Heaton Grove is numerically number 34 (and thus, I was able to find a streetview photograph on Google Maps), is there anywhere a number associated with Westwood, Highgate?
I tried to order a digital birth record of Alice Edge (and KGarrad, I know your info is correct, because I had already found the same), but it returned ‘No Matching Results Found’. Bizarre.
But seriously, thank you all very much. It gives me a lot to work on.