 During the Second World War , Whittle 's son , Ivan Ernest , served as a private in the 2 / 33rd Australian Infantry Battalion . He was killed when the B @-@ 24 Liberator aircraft he was travelling in crashed into a marshalling yard at Port Moresby , New Guinea , on 7 September 1943 . At his home in Glebe on 2 March 1946 , John Whittle died of a cerebral haemorrhage at the age of 63 . Survived by his wife , a son and three daughters , he was buried in Rookwood Cemetery . 
