The names of the father and mother are changed at the birth of every child in the same manner.
At Moorunde, and among many other tribes, I have not found any numerical names to be given at birth, the first name usually being that derived from some object in nature.

This is occasionally changed after marriage and the birth of a child; as among the Adelaide or northern natives, the father taking the name of the child with the affix of imbe or nimbe (implying father), as Kartul, a child's name, Kartulnimbe the father of Kartul, Memparne, a child's name, Memparnimbe the father of Memparne.
This paidronymic is not, however, always adhered to in preference to the original name; thus Memparnimbe is as often called by his former name of Tenberry as his paidronymic; he is also called occasionally Worrammo, from his being left-handed.

Neither have I found the name of the parent change at the birth of every child; thus Memparnimbe has other children, younger than Memparne, as Warrulan, Timarro, etc.

yet he is never called Warrulanimbe, Timarronimbe, etc.

The mother's name, similarly to that of the father, is also occasionally altered to that of the child, with the affix of arwer, or emarwer, as Kartulemarwer, the mother of Kartul, Memparnemarwer, the mother of Memparne, yet is the original name of the mother as often used as the paidronymic.