Sorry to hear of the loss. She sounds like a proper old lady Doris, bet she was lovely.
My grandad died in the early hours of my 17th birthday. He too had dropped into Italy with the engineers and cleared upwards. He had lots of stories but the one he'd never talk about was the day a german plane bombed the school at Petworth killing 28 boys and 2 staff. He was stationed with the Canadians nearby and helped in the rescue, but from the little he told it was digging out bodies of schoolboys out from the rubble.
Cancer beat him too. He had his family around him when he went and his last thoughts were that he'd ruined my birthday (17 = driving = freedom, etc.) and I still can't muster the conviction to get that excited about my birthday even now. I go through the motions, especially as the kids want a party and the lot but i still miss him every year on 13/5.
RIP FJV and Auntie Doris and all like you.