What a wonderfully encouraging story. It seems like your family is on the right track and that your Son1 sees things with more mature eyes now.
Oviously from many experiences related here, age doesn't necessarily bring maturity to all. It's too bad that there's many still-active witnesses young and old, who seem to think treatment of df'd family members means no association with them at all and try to enforce that on others. I don't know how these ones explain the fact that there are other active witnesses who believe the rule that only spiritual association is taboo, so that family association, with those not living at home, is OK. Maybe someday I'll be able to ask the rest of my family how they explain this two-sided practice. They just don't seem to take the time to think the logic through.
I think I'll probably get an answer like, "well if they want to breakthe rules that's their personal opinion and they'll have to answer for it..as for us, we'll obey Jehovah" or something along those typical JW lines.
As for your family, I'm really glad to hear after all these years you are starting to see some progress to a smoother relationship with each other and can experience some hope now.
Love your sense of humour re: "Millions now living..."