Hananiah’s descendants: Pelatiah, Jeshaiah, and the sons of Rephaiah, Arnan, Obadiah, and Shecaniah.

From Jeduthun: Jeduthun’s sons:
Gedaliah, Zeri, Jeshaiah, Shimei, Hashabiah, and Mattithiah—six—under the authority of their father Jeduthun, prophesying to the accompaniment of lyres, giving thanks and praise to the Lord.

the eighth to Jeshaiah, his sons, and his brothers—12

His relative through Eliezer: his son Rehabiah, his son Jeshaiah, his son Joram, his son Zichri, and his son Shelomith.