Mabo was born Eddie Koiki Sambo[1] but he changed his surname to Mabo when he was adopted by his maternal uncle, Benny Mabo. He was born on the island of Mer (Murray Island) in the Torres Strait between mainland Australia and Papua New Guinea. Mabo married Bonita Neehow, an Australian South Sea Islander, in 1959. The couple had seven children and adopted three more.[3] One daughter, Gail, is an Aboriginal artist[4] and dancer who works with schools in New South Wales as a cultural advisor and serves as the family's designated spokesperson.
In 1981 a land rights conference was held at James Cook University and Mabo made a speech to the audience where he explained the land inheritance system on Murray Island. The significance of this in terms of Australian common law doctrine was taken note of by one of the attendees, a lawyer, who suggested there should be a test case to claim land rights through the court system. Perth-based solicitor Greg McIntyre was at the conference and agreed to take the case; he then recruited barristers Ron Castan and Bryan Keon-Cohen. McIntyre represented Mabo during the hearings. Of the eventual outcome of that decision a decade later, Henry Reynolds said: "it was a ten year battle and it was a remarkable saga really." Mabo relaxed by working on his boat or painting watercolours of his island home; however, after 10 years the strain began to affect his health. On 21 January 1992, he died of cancer at the age of 55.