Complex sentence: Roger Milliken became peesident of the company on the death of his father in 1947 and served in that capacity until 1983, when he became Chairman and Chief Executive Officer of Milliken & Company and named Dr. Thomas J. Malone as President and Chief Operating Officer.
Split into simpler sentences: Roger Milliken became President of the company on the death of his father in 1947 and served in that capacity until 1983. That year, he became Chairman and Chief Executive Officer of Milliken & Company and named Dr. Thomas J. Malone as President and Chief Operating Officer.