The Gershonites: Ladan and Shimei. The three sons of Ladan: Jehiel, Zetham, and Joel. The three sons of Shimei: Shelomoth, Haziel, and Haran, all heads of the families of Ladan. The four sons of Shimei: Jahath, Ziza, Jeush, and Beriah. Jahath came first, followed by Ziza. Jeush and Beriah did not have many sons so they were counted as one family with one task.