Havilah

Havilah another son of Joktan and descendant of Noah's

Gen 10:29  And Ophir, and Havilah, and Jobab: all these were the sons of Joktan. 

1Ch 1:23  And Ophir, and Havilah, and Jobab. All these were the sons of Joktan. 

Cush also had a son by the name Havilah there are several listing to territories which pertain to Havilah Joktan's son is unknown?

Gen 2:11  The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold; 

Gen 25:18  And they dwelt from Havilah unto Shur, that is before Egypt, as thou goest toward Assyria: and he died in the presence of all his brethren. 

1Sa 15:7  And Saul smote the Amalekites from Havilah until thou comest to Shur, that is over against Egypt.