No, "She is childless." http://www.telegraph.co.uk/culture/film/starsandstories/3670956/Julie-Christie-still-our-darling.html.
He's multiracial. His father is Michael Warren, who is African-American (but looks mixed himself), and played Bobby Hill in the 1981 TV series Hill Street Blues. And his mother is white American.
Howard Warren Buffett, Howard Buffett, Susan Alice Buffett, Howard Graham Buffett and Peter Buffett
Estella Warren was born on December 23, 1978.