He had two younger brothers; Robert Corowa,[3] who later became involved with the Aboriginal Tent Embassy in 2019,[4] and Vivian Walker (1953–1991), a dramatist.
[5][6] He co-founded, with Sam Watson, the Brisbane chapter of the Australian Black Panther Party (ABPP) on 8 January 1972.
[8] In January 1972, having himself been in court only a few days beforehand on the charge of possessing a concealable firearm,[9] he told reporters that "if you haven't got a gun, you have nothing.
[15] Cheryl Buchanan, who was director of the Black Resource Centre, which had moved from Melbourne to Brisbane, was involved in the defence and ultimate acquittal.
[citation needed] Walker continued to fight for a treaty between the Australian Government and Aboriginal nations through the 1990s and until his death.