1945 - 1951 | Lecturer Altaic Linguistics, Vienna University. |
1952 - 1954 | Linguistic Expert Central Asian Resource Center, London, St Antony's College, Oxford. |
1954 - 1956 | Resident Fellow of Linguistics, University of Sydney. |
1962 | Visiting Lecturer North Western University, USA. |
1963 | General Editor Pacific Linguistic Series |
1964 | Visiting Professor Indiana University. |
1967 - 1974 | Member Council and Executive Council Australian Institute of Aboriginal Studies |
1967 - 1970 | President Linguistic Society Australia. |
1968 | Visiting Professor, University of Hawaii |
c. 1970 - 1987 | Head of Department of Linguistics, Australian National University |
1975 | Editor Papuan Languages and the New Guinea Linguistic Scene. |
1976 - 1977 | President Linguistic Society Australia. |
1977 - 1997 | President International Committee of Linguistics 1997 (Executive Council since 1977) |
1981 - 1983 | Editor Language Altas Pacific Area |
1983 | Honorary President International Council of Philosophy and Humanisitic Studies, UNESCO 1997 - (President 1988-1992, Vice-President 1984-1988, Council Member since 1983). |
1985 - 1989 | Member Executive Council Union Academique Internationale (Member since 1985, Delegate since 1979, President until 1989). |
1988 | School Fellow, Research School Asia and Pacific Studies, Australian National University |
1990 - 1995 | Project Director and Senior General Editor, Atlas of Languages for Intercultural Communication in the Pacific Hemisphere. |
1992 - | World Coordinator Red Book Project Endangered Languages (UNESCO) |