The present dispute originated when Tindall in his 1940 map incorrectly drew its boundaries with that of Ngarigo.
Some Canberra-area people with Aboriginal heritage in inland SE Australia, including Matilda House and Shane Mortimer, say they are a part of the Ngambri people who spoke Walegulu not Burragorang, and are not part of the Ngunnawal people with its different language [REF].