Welcome captblack,
If you have had the time to go back over this thread, you'll have seen that there have been attempts to have a memorial erected, most probably in Armoury Rd, but local councillors have shown minimal enthusiam, and worse manners by failing to reply, despite support from the MP. I don't live in UK, so cannot suggest what you can realistically do next in practical terms. Keep plugging away - these people richly deserve to be commemorated.