Yes in the book there was only Charlie and Ralph Angel. The 3rd sibling that is being portrayed in the TV version was actually a cousin in the book .. the Daughter of Aunt Vi.

I really enjoyed it. I read the book last week and was curious to see how DuVernay would adapt it for TV. It did not disappoint. I do agree that it requires a different kind of watching. But I loved it. The scene with the father, Ralph Angel and Blue in the hospital really touched me…