Book excerpt: Examines Southern writers in a Celtic context. This debut book of literary criticism challenges the common perception that the culture of white Southerners springs from English, or Anglo-Norman, roots. Mr. Cantrell presents persuasive historical and literary evidence that it was the South's Celtic, or Scots-Irish, settlers who had the biggest influence on Southern culture, and that their vibrant spirit is still felt today. It discusses the work of William Gilmore Simms, Ellen Glasgow, the Agrarians, William Faulkner, Margaret Mitchell, Flannery O'Connor, Pat Conroy, and James Everett Kibler.