British fashion designer Stella McCartney, 38, and her husband Alasdhair Willis are expecting their fourth child in the fall. The new baby will join the couple’s existing three children; eldest son Miller Alasdhair James, 5, daughter Bailey Linda Olwyn, 3½, and son Beckett Robert Lee, 2½. McCartney is the daughter of Beatles lead singer Paul McCartney and his late wife, Linda McCartney.
