Thousands of people with Indigenous Australian ancestry are believed to be living in Vanuatu. Many are the descendants of blackbirded islanders sent back to Vanuatu at the turn of the 20th Century, in line with the White Australia Policy.
Between 1863 and 1904, more than 62,000 Pacific Islanders were taken to Australia — often against their will, or on false pretences — to work on Queensland's cotton and sugar plantations.
But Emelda Davis, chairwoman of the Australian South Sea Islanders Port Jackson chapter, said it wasn't just Pacific Islanders who were kicked out of Australia.
She said there were stories of islander workers taking in orphaned Indigenous Australian children, as well as stories of workers marrying and establishing families with Indigenous Australians.
"Then when the White Australia Policy came in, the mass deportation did take a lot of those Indigenous families back to the islands," she said.
"It's always something that was known, but it's quite interesting that it's being promoted or brought to the attention of the Australian Government now."
David Abel, a former Vanuatu MP and a descendent of a Pacific Islander blackbirded to Australia, has long been an advocate for better recognition of that dark chapter in Australia's history.
He and his brother, Chief Richard David Fandanumata, a member of Vanuatu's influential National Council of Chiefs, were in Adelaide this week for a forum on the topic hosted by the University of South Australia.
Both brothers have Aboriginal ancestry through their mother, and have been tracking others down around Vanuatu.
"We started receiving stories from all around the islands, I came here with some figures that put them up to over 4,000," Mr Abel said.
Chief Richard said they are not necessarily seeking Australian citizenship, but they do want to be recognised.
"Plenty of us, when we look at our history, our bloodlines, our family tree, they call us Australians," he said.
"They connect us. And we want to become part of the family. Those of us in Vanuatu want to be connected with our family in Australia."
The brothers are trying to track down their Australian family, the majority of whom are believed to be from the Tweed Heads region of New South Wales.