A correspondent of
E. M. Curr, Peter McIntosh, a resident of the area, stated that the Gangulu were a confederation of several groups, the main ones being the Karranbal, the Maudalgo, and the Mulkali. No further data were recorded to enable ethnographer
Norman Tindale to clarify the precise nature of the last two groups, but the
AUSTLANG database by
AIATSIS reports that the Karranbal is the Garaynbal (Garingbal) language and Maudalgo is a variant name of the
Wadjigu language and people, a separate group from the Biri, who spoke a
Bidjara dialect. Mulkali is not further described. Along with many other Queensland tribes whose traditional lands had been annexed by colonial pastoralists, many Gangulu people were forcibly removed to the
Woorabinda and
Cherbourg government reserves. ==Alternative spelling==