| Esau, Jacob|
Terah, Saleh, Amathlaah
| Ishmael, Esau, Basemath|
Dumah (Hebrew: דּוּמָה Dūmāh; Aramaic for "silence") was the sixth son of Ishmael, the son of biblical Abraham and Hagar.
Dumah (son of Ishmael) Wikipedia
In the Book of Isaiah (21:11), Dumah is mentioned in the context of Seir, which was associated with the territory of Edom in the Negev region. Attempts to locate the tribe named for and descended from Dumah have produced multiple possible identifications. A Dumah (Deir ad-Duma) in the vicinity of Hebron which is mentioned in Joshua 15:52 is one possibility. However, according to Geoffrey Bromiley, the oracle concerning Dumah in Isaiah 21:11f seems better suited to a place in Arabia, suggesting the site of Dumat al-Jandal as a more likely contender. Known today as Al-Jawf, in ancient times it is mentioned in inscriptions of the Assyrian monarchs as Adummatu and is described as "a fortress of Arabia", "situated in the desert", that was destroyed by Sennacherib's forces.