Barlow's (1873) word list of Wirriwirri is reported in a range of sources to be an alternative name for several more southern languages: Wirraay-Wirraay D66, Wirraayaraay D65, Wiriyaraay D28, and Weraeria D57. Wafer and Lissarrague provide evidence to argue the case that Barlow's Balonne River Wirriwirri is Wirraa-Wirraay D66 (2008:216-220). See and use D66.
... located around the Balonne River in southern central Queensland (Barlow, 1873).
Speaker numbers were measured differently across the censuses and various other sources listed in AUSTLANG. You are encouraged to refer to the sources.
Speaker numbers for ‘NILS 2004’ and ‘2005 estimate’ come from 'Table F.3: Numbers of speakers of Australian Indigenous languages (various surveys)' in 'Appendix F NILS endangerment and absolute number results' in McConvell, Marmion and McNicol 2005, pages 198-230 (PDF, 2.5MB).