ok, wikied him, and there's this bit:
"Talk show host Oprah Winfrey chose McCarthy's 2006 novel, The Road, as the April 2007 selection for her Book Club.[1] In addition, McCarthy agreed to sit down for his first television interview, which aired on The Oprah Winfrey Show on June 5, 2007. The interview took place in the library of the Santa Fe Institute; McCarthy told Winfrey that he does not know any writers and much prefers the company of scientists. During the interview he related several stories illustrating the degree of outright poverty he has endured at times during his career as a writer. He also spoke about the experience of fathering a child at an advanced age, and how his now eight-year-old son was the inspiration for The Road."
ok, so that blows that theory. Mccarthy IS a dad...
WHY wouldn't he name the child?