Oates (1988:6) lists Purukuri as one of five Muruwari D32 groups, the others being Nuntukuri D50, Kungkakuri D49 , Thinuntu D52 and Kuntakuri D53. It is not clear whether these are also names of distinct language varieties. Radcliffe-Brown (1923:434) mentions Kangkargari D49 and Ngandugari D50 as being local divisions of the Murawari D32 group which probably spoke different dialects of Murawari. Documentation on Muruwari D32 is relevant.
... in the Wanaaring area (Oates 1988:6).
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).
Oates, Lynette. 1988. The Muruwari language: Pacific Linguistics C108. Canberra: Pacific Linguistics.
Oates, Lynette. 1992. Muruwari (Moo-roo-warri) dictionary: words of an Aboriginal language of north-western New South Wales (Brewarrina-Goodooga-Bourke area) written for schools. Albury, NSW:Graeme van Brummelen.