Smith's Bible Dictionary (1863)
(a burnt valley), the fourth son of Eliphaz the son of Esau, (Genesis 36:11; 1 Chronicles 1:36) and one of the “dukes” of Eliphaz.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
GA'TAM (a valley burnt), a grandson of Esau, and one of the "dukes" of Edom. Gen 36:11, Gen 36:16; 1 Chr 1:36.
Hitchcock's Bible Names (1869)
their lowing; their touch