Functions of the Aboriginal Population Record section; includes naming conventions used by Aboriginal people in the Northern Territory; discusses socialorganisation within Aboriginal groups in the Northern Territory, subsections or 'skin' systems; explanation of patrilineal clans and the concept of 'moiety'; spelling of subsection names; surnames used by Aboriginal communities; this surnames used at Oenpelli, Bathurst and Melville Islands, Yirrkala Port Keats and Groote Eylandt.