Bob's wife, Mary Hogan, is the author of ten novels, including the bestselling Two Sisters, Left: A Love Story and the historical fiction, The Woman in the Photo (all published by William Morrow). She is also the author of the young adult novels, The Serious Kiss, Perfect Girl and Pretty Face (HarperCollins) and a series of four international Y.A novels published by Delacorte and Simon & Schuster UK.