NEW YORK Elena Ferrante, James McBride and Isabel Wilkerson are among the nominees for the Kirkus Prize, a $50,000 honor for the best fiction, nonfiction and children's books. The nominees, six each in the three categories, were chosen by panels of writers, critics, booksellers and librarians. Other nominees were Tola Rotimi's Black Sunday," Juliana Delgado Lopera's Fiebre Tropical," Douglas Stuart's Shuggie Bain" and Raven Leilani's Luster." Wilkerson is a nonfiction finalist for another Winfrey pick, her study of racism in the U.S., Caste." In young people's literature, nominees include a children's version of Ibram X, Kendi's award-winning study of race, Stamped from the Beginning," co-authored with Jason Reynolds.