Cooper was born Margaret Elizabeth Douglas in Punta del Este, Uruguay on 25 January 1918, where her Canadian father, Jack Douglas, owned a beach house, across the River Plate from Argentina, where he owned a beef ranch.
Cooper was born Margaret Elizabeth Douglas in Punta del Este, Uruguay on 25 January 1918. Her Canadian father owned a beach house from Argentina. This was across the River Plate. Jack Douglas was her Canadian father. He owned a beef ranch.