. Joktan

And unto Eber were born two sons:
the name of one was Peleg;
for in his days was the earth divided;
and his brother's name was Joktan.
Genesis 10:25 KJV

And Joktan begat Almodad,
and Sheleph,
and Hazarmaveth,
and Jerah,
Genesis 10:26 KJV

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