The thing is that these satanic families make their plans in multiple generations. So just going back to the parents is not far enough. And looking at grandparents and great-grandparents generally requires physically looking at paper records, which may have been compromised in the case of certain prominent individuals.
The Illuminati clans have come together and all agreed on the NWO plan relatively recently. Historically they are all at each others throats, as they try to reach a dominant position. Even today, I expect that parts of these clans are still jostling for power. SRA may have been a Golden Child whose parents wanted her to get the High Priestess role that Hillary ended up with.