Your question gave me the opportunity to do something I have been thinking of doing which is to visit City Road for the first for a long time and remind myself how it is laid out and numbered. To do this I collected the information I needed to make my own plot plans of these sections which I will send you.
I also took photos of what I calculated are these particular plots. EE1 15660 was straightforward to find as it has surrounding memorials that can be identified. This plot has a large Whitebeam tree growing from it.
V1 7486 was slightly more difficult as it in a row of mostly unmarked graves. I am 90% sure I have got it right.