I contacted Rippleside Cemetery via email (I googled Rippleside Cemetery, which gave me the email address). I had a reply on the following working day, explaining that there is a large map on the grounds as you enter the cemetery which shows grave sections. The email went on to say: "If you let me know nearer the time of your planned visit I can arrange for one of the ground staff to show you to both graves, I’m afraid this would only be possible during the week and not weekends". A really helpful response.
I had an equally helpful response from West Ham Cemetery, and they did email me a map showing the different sections - if any one would like a copy, please send me a private message with your email address and I'll send the map as an attachment (I can't seem to attach it here).