Though there was little evidence of whether the Kinderhook Plates were ancient or a contemporary fabrication, some within the LDS Church believed them to be genuine. The September 1962 "Improvement Era", an official magazine of the church, ran an article by Welby W. Ricks stating that the Kinderhook plates were genuine. In 1979, apostle Mark E. Petersen wrote a book called "Those Gold Plates!". In the first chapter, Peterson describes various ancient cultures that have written records on metal plates. Then Peterson claims: "There are the Kinderhook plates, too, found in America and now in the possession of the Chicago Historical Society. Controversy has surrounded these plates and their engravings, but most experts agree they are of ancient vintage."