*Minor differences ignored. Grouped by changes, with first version listed as example.
Hadad here and in 1-Chronicles 1:50 is the well-known Syrian name, of which Hadar (margin) is an accidental corruption, consequent on the close resemblance between "d" (daleth) and "r" (resh) in Hebrew, the final letters of the two names.
Dumah--Dumah and Tema, the great Arab tribes of Beni Teman. Thus this writer [Historical Geography of Arabia] traces the names of all the heads of the twelve tribes of Ishmael as perpetuated in the clans or tribes of the Arabs in the present day.
*More commentary available at chapter level.