The Cobourg cattle company took up a lease for hunting buffalo in the Alligator River area in 1876, and Aboriginal people were a major part of the workforce. The Gaagudju, with the arrival of the feral buffalo hunter
Paddy Cahill in their area in the 1880s, were employed by him in tracking and harvesting kills of this introduced animal. For many decades they dominated the industry. There was a dramatic population collapse in that area for the next three decades (1880-1920) due to introduced diseases and new colonial land use. Most of the material collected by
Baldwin Spencer over two months on the people of
Oenpelli reflects a Gaagudja perspective, since Spencer's main informant, Cahill, happened to be fluent in that language and was an intermediary between Spencer and the three Indigenous informants, Mitcheralaka (Madjirrilaaga) of the Mirarr clan, Kopereiki (Gabhirrigi) of the Bunidj clan, and Wardiirdi, also of the Bunidj, and Wudeirti, but at the same time Spencer realised that several other Aboriginal peoples were present at Oenpelli and that Cahill's Gaagudeju testimony covered their distinct traditions as well. After Cahill's death the Gaahudju shifted to the Alice and Mary River areas, to continue buffalo hunting, and gradually Oenpelli was occupied by the
Kunwinjku, who moved in from the west. ==Notable people==