Just wanted to say thanks to JC and Donna for your responses and info. I've cross-checked with some other info and am 100% confident that the burial plot in Douglas Borough Cemetary is the right one.

I'm visiting IoM next week with my brother and mum and she is delighted that she will be able to pay her respects. She's 78 and has dementia and this is will mean a great deal to her.

My sincere thanks and gratitude for your help.

Iain