This is the history of the descendants of Ishmael, the son of Abraham through Hagar, Sarah's Egyptian servant.
Here is a list, by their names and clans, of Ishmael's descendants: The oldest was Nebaioth, followed by Kedar, Abdeel, Mibsam,
Mishma, Dumah, Massa,
Hadad, Tema, Jetur, Naphish, and Kedemah.
These twelve sons of Ishmael became the founders of twelve tribes that bore their names, listed according to the places they settled and camped.
Ishmael finally died at the age of 137 and joined his ancestors in death.
Ishmael's descendants were scattered across the country from Havilah to Shur, which is east of Egypt in the direction of Asshur. The clans descended from Ishmael camped close to one another.
References for Genesis 25:18