Principal researcher, Pilbara Expedition, Western Australia, 1967-1970;
principal researcher, Parietal Markings Project, South Australia, since 1975;
managing director, Archaeol. Publs. Inc., Melbourne, Australia, since 1983;
general editor, Australian Rock Art Research Association, Melbourne, since 1984;
permanent chair, International Federation of Rock Art Orgns., Melbourne, since 1988;
editor, Archaeol. and Anthropol. Society Victoria, Melbourne, since 1990;
national coordinator, International Council on Monuments and Sites-CAR (United Nations Educational, Scientific and Cultural Organization), Melbourne, since 1991.
Advising committee Rock Art Protection Program, Canberra, 1985-1988, Australian Institute Aboriginal Studies, Canberra, 1987-1989. Technical advising committee Australian Heritage Commission, Canberra, 1986-1989. Chief science advisor First Sailors Expedition.
Visiting fellow, lecturer numerous universities worldwide, since 1983.
Member Australian Rock Art Research Association (secretary since 1983), Archaeol. and Anthropol. Society of Victoria (editor since 1990), Australian Archaeol. Association, Committee International d'Art Rupestre (national coordinator since 1991), American Rock Art Research Association, Rock Art Society of India (honorary life member).
Married Elfriede KaetheSchipfer, February 8, 1971. Children: Cathrin Olga, Robert Gerhard Franz.