The masterly epic, "The Irish Century," continues in "1949," a sequel to "1916 "and "1921." The struggle of the Irish people for independence is one of the compelling historical dramas of the twentieth century. Morgan Llywelyn has chosen it as the subject of her major work, a meticulously researched, multinovel chronicle that began with "1916," continued in "1921," and that she now brings up to the midcentury in "1949." Her new novel book tells the...