From 1976 to 1978, Walter also served as a member of the Aboriginal and Torres Strait Islander Arts Board. In the early 1990s, he helped to set up Aṉangu Tours, the main tour operator in Uluṟu-Kata Tjuṯa National Park. His daughter, Rene Kulitja, and son-in-law, Richard Kulitja, took over the company when Walter retired. Walter died on 10 November 2004, in Alice Springs.