There is no pure B detected in any tribe but the Cherokee
Entire old original Cherokee Nation is descended from Pocahontas - who is related to George Bush.
Jimmy Hendrix had B- blood and was of Cherokee descent. He was suspected to be involved in the MKUltra program.
The Rothschild family have B- blood, as does Ramasses, who is spoken of, in the new Alien film.
B bloodgroup was targetted during the second world war, as it is associated with Ashkenazism (German Jewish Blood.)
Some features of rhesus negative blood include, extra vertabrae, morton's toe (a condition which Ahkenhaten had, however Tut is found to have A2), also associated with coloboma of the eye. Which means, it plays a role in the genetic transcription of the Pineal Gland.
Strongest presence of Negative blood is found amongst the Morroccon berbers, the second highest concentration is found amongst the Basques community.
NO B BLOOD IN BASQUE COMMUNITY
The Basques people, like The Hungarian people, have a unique language. One Hungarian flag used to feature The Unicorn and a Snake Eating A Man.
Soros is from Hungary. He was adopted by the Nazi's. He displays B- blood, via his Coloboma and Ashkenazi Heritage.
The Rothschild family, also display Coloboma, in particular Jacob. Of B- blood.
If I were to guess, I would say Stanley Kubrick also shared B- blood. It is speculated Jack Nicholson does, which forms a nice pattern back to the exceptionally tall Chief, the silent patient, a Cherokee.