Genesis 2:8

2:8 The Lord God planted an orchard in the east, in Eden; and there he placed the man he had formed.

Genesis 11:2

11:2 When the people moved eastward, they found a plain in Shinar and settled there.

Genesis 12:8

12:8 Then he moved from there to the hill country east of Bethel and pitched his tent, with Bethel on the west and Ai on the east. There he built an altar to the Lord and worshiped the Lord.

Genesis 3:24

3:24 When he drove the man out, he placed on the eastern side of the orchard in Eden angelic sentries who used the flame of a whirling sword to guard the way to the tree of life.

Genesis 13:11

13:11 Lot chose for himself the whole region of the Jordan and traveled toward the east.

So the relatives separated from each other.