Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Joktan
Usage: A man living at the time of the Patriarchs, first mentioned at Gen.10.25; son of: Eber (H5677); brother of: Peleg (H6389); father of: Almodad (H0486), Sheleph (H8026), Hazarmaveth (H2700), Jerah (H3392), Hadoram (H1913A), Uzal (H0187), Diklah (H1853), Obal (H5745), Abimael (H0039), Sheba (H7614H), Ophir (H0211), Havilah (H2341I) and Jobab (H3103) § Joktan = "smallness" son of Eber and descendant of Shem and patriarch of various Arabian tribes