Previously Andajin was linked to the code K23 and Andidja was treated as an alternative name. Although information is sketchy and McGregor (1988) lists Andidja as a member of the Worrorran language group and an alternative name for Andajin, Saunders (2007 p.c.) believes the two names do not refer to the same language.
Andajin, which appears more recently in the records, is treated as closely related to Ngarinyin K18 by Dixon (2002), McGregor and Rumsey (2009) and McGregor (1988) and is generally associated with the King Leopold Ranges area of Western Australia.
According to Saunders (2007 p.c.), Andajin is in a dialectal relationship with Ngarinyin K18 and Wurla K43. Ngarinyin is described as 'heavy' and Wurla and Andajin are described as 'light'. Andedja K23 appears in the earlier sources (e.g. Elkin 1933, Kabery 1935) and is associated with the Forrest River region.
Glasgow, Hocking and Steiner (nd) say that Andidja K23 has been variously linked to Wumbulgari, Gunin K36, Wunambal K22, and Wuladja. Capell (1963) says it is a dialect of the 'Forrest River' language, along with Gwini K36, Walar K45, Jeidji K32, Manungu K46 and Wembria K31, and Oates (1975) links Andidja / Andidjara K23 to Wunambal K22.
Tindale (1974) does not mention 'Andajin' but associates Andedja / Andidja with two different identities, as a variant name for both Wilawila K35 and Ngarinjin K18. Saunders (p.c.) says both Andajin and Andidja have been referred to as Arawari K28, which is a directional term meaning 'south' or 'south-east'. As K23 was originally assigned to Andidja, this code assignment has been restored and a new record and code for Andajin K64 has been created.
... the country around Glenroy and Mornington cattle stations including part of the Fitzroy river, the Adcock river and the lower Hann River (Saunders 2007 p.c.). The general territorial association extended from the King Leopold Ranges in the south to the eastern Philips Range in the north, from Lungra Yard in the west to around Tharlow Hill in the east. Lungra Yard, Glenroy, Mornington, Sir John Gorge, Fitzroy Gorge, Macnamara Creek were all associated with Andajin (Harvey AILEC 0802).
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).