Komentarz do Rodzaju 36:10

אלה שמות, first the Torah lists the names of his sons, followed by the names of his grandsons. No grandchildren of Oholvamah are mentioned. This need not mean that she did not have grandchildren, but, since the Torah was concerned with listing the Alufim, men of positions of authority, it is likely that none of Oholivamah’s grandchildren rose to such positions whereas her sons did.