Sir Ninian Martin Stephen ( born 15 June 1923 ) is an Australian jurist , who served as a Justice in the High Court of Australia before being appointed the 20th Governor-General of Australia .
Sir Ninian Martin Stephen , ( born 15 June 1923 ) is an Australian jurist , civil servant , and politician . He served as the 20th Governor-General of Australia and as a Justice in the High Court of Australia .