1
Reuben was Israel's first son. Reuben should have received the special privileges of the oldest son, but he had sexual relations with his father's slave woman. So those special privileges were given to Joseph's sons. (Joseph was a son of Israel.) In the family history Reuben's name is not listed as the first son.
2
Judah became stronger than his brothers, and a leader came from his family. But Joseph's family received the privileges that belonged to the oldest son.
3
Reuben was Israel's first son. Reuben's sons were Hanoch, Pallu, Hezron, and Carmi.
4
These were the children of Joel: Shemaiah was Joel's son. Gog was Shemaiah's son. Shimei was Gog's son.
5
Micah was Shimei's son. Reaiah was Micah's son. Baal was Reaiah's son.