Nigel Randell Evans was the oldest son of Air Chief Marshal Sir Donald Randell Evans ( 1912-1975 ) and Pauline Evans . Nigel Randell Evans was the eldest son of Air Chief Marshal Sir Donald Randell Evans ( 1912-1975 ) and Pauline Evans . Donald Randell Evans was the eldest son of Air Chief Marschall Sir Pauline Evans ( 1912-1975 ) and Nigel Randell Evans .