In 1964, Rudder went to Arnhem Land as a teacher, and later as a community development worker and educator among adult Indigenous Australians. In that time he learned to speak the language of the region, and analysed its grammar and syntax. He sought to gain formal educational qualifications after moving to Canberra, and has since gained a master's degree in Anthropology focussing on Aboriginal Classificatory Theory and Cognitive Structures and a Doctor of Philosophy degree in Aboriginal Anthropology focusing on YolnguCosmology
Language teaching
From 1993 to 2010, Rudder was heavily involved with Stan Grant, an elder of the Wiradjuri people, in reclaiming the Wiradjuri language that was at that time effectively dead. He took anthropological studies and records amounting to the records of fewer than 2,000 words and applied the language and cognitive analysis he had previously applied to the Yolngu language, to begin to reconstruct the Wiradjuri language. With Grant, who provided a sense of the language remembered from his youth in World War II among Wiradjuri-speaking family and tribal members, notably his grandfather, they have established training sessions to teach the language across Wiradjuri country. Intensive weekend camps, workshops, and other sessions have seen a growing number of Wiradjuri speakers who are beginning to re-establish the language. For instance, these speakers are beginning to write songs and poems that are then being taught to children. Secondary effects of the cultural use of the Wiradjuri language are being felt within the language group, and beyond. Examples are:
recognition of the Wiradjuri as a cultural group within the wider society
use of Wiradjuri words in communities, and in Australian usage
teaching of Wiradjuri to New South Wales Primary School children
Rudder has been a member of the Uniting Church in Australia. Until her death in 2008 he was married to Trixie, a part-time lay pastor for a of the Uniting Church at Gunning, near Canberra. In December 2010 he remarried and moved to Sydney. His second wife Dr Julie Waddy PhD OAM worked as an ethnobiologist and linguist working with the AnglicanChurch Missionary Society on Groote Eylandt in the Northern Territory with the aboriginal people for 30 years, and returned to Sydney in 2005. John says that his relationships – what most white Australians would call friendships and family – are mostly with the Aboriginal people.
Publications
Rudder has self-published a book on the counting system of Australian Aborigines, has produced teaching materials for his courses in aboriginal speaking and thought, and is in the process of completing an Aboriginal–English dictionary. His recent writing has been extensively in collaboration with Stan Grant. Rudder's publications include:
Rudder, John; Yolngu Cosmology: An Unchanging Cosmos Incorporating a Rapidly Changing World, DPhil thesis, Australian National University, 1993