Debbie - I think you're right on two counts. Firstly, the elderly, well, why kill them with the 'news' that everything they have lived with/for is a lie?!
As for the family, I feel now that we must at least make a once and for all concerted effort to 'bomb' them with Watchtower history and information!
I have in the past managed to stop a couple of studies with just one direct conversation and these people NEVER went to another meeting again.
Could be that this family deserve the same opportunity and they can then decide for themselves.
I've managed to track down their road.....I just need their house number!