Hi Don,
I emailed the cemetery office (Carol.De'
ath@lbbd.gov.uk) to ask if there was a map available, and got this very helpful reply:
There is a large map on the grounds as you enter the cemetery which only shows grave sections. 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.so I would suggest you email the office.
Hope this helps,
Judith