Their family history shows who the family leaders were. And their family history also shows they had 20,200 soldiers.
Jediael’s son was Bilhan. Bilhan’s sons were Jeush, Benjamin, Ehud, Kenaanah, Zethan, Tarshish, and Ahishahar.
Beker’s sons were Zemirah, Joash, Eliezer, Elioenai, Omri, Jeremoth, Abijah, Anathoth, and Alemeth. They all were Beker’s children.