I do feel you get sidetracked by trying to insert your family (and celebrities) into the past life context, which takes away from your own discovery and journey, which is what I'm really interested in!
Please excuse me for commenting, I hadn't really thought about how these things apply to other members. So I'll only talk of my own experience.
When I first started to identify one of my own past lives, I tried to fit my current circle of those who were important in my present-day life, and match them up with those who had been significant in that past life. I was a bit like a theatre director, putting on a new play. On the one hand I had a list of characters in the play. On the other, a list of actors. And I assigned each player to their part. on a pretty arbitrary basis I should add, and nowadays I would disagree with myself, most or all of my assigning of an actor to a role were pretty certainly mistaken.
The way I see it nowadays is over a longer timescale. During the course of this life, many different social circles have formed and dispersed around me. Most of the significant people for me have not been relatives at all, but different people I've met along the way. Because of this ever-shifting cast of characters in my life, though I'm sure some of them have been part of my past lives, it is such a dynamic, shifting web of connections that it feels more like a theatre director who is putting on a new play every so often, and both the roles and the group of actors to play them are ever-changing.
Perhaps more seriously, I don't feel it within my grasp to sufficiently decide these things on behalf of anyone else, that would be an overreaching and perhaps thinking too highly of myself and my abilities. Having some insights into my own life doesn't imply I may do the same for anyone else.
As I say, those are just my own thoughts on my own experience, I'm not really having any opinion, I'm open-minded about the other members on this forum.