These were the family leaders listed in the genealogical records; they lived in Jerusalem. ¹ 

These were the descendants of Ehud who were leaders of the families living in Geba who were forced to move to Manahath:

Jeuz, Sakia, and Mirmah. These were his sons; they were family leaders.

The musicians and Levite family leaders stayed in rooms at the sanctuary ¹  and were exempt from other duties, for day and night they had to carry out their assigned tasks.

Their relatives, listed in their genealogical records, numbered 956. All these men were leaders of their families. ¹ 

The sons of Bela: Ezbon, Uzzi, Uzziel, Jerimoth, and Iri. The five of them were leaders of their families. There were 22,034 warriors listed in their genealogical records.

The descendants of Eleazar had more leaders than the descendants of Ithamar, so they divided them up accordingly; the descendants of Eleazar had sixteen leaders, while the descendants of Ithamar had eight. ¹ 

Just like their relatives, the descendants of Aaron, they also cast lots before King David, Zadok, Ahimelech, the leaders of families, the priests, and the Levites. The families of the oldest son cast lots along with the those of the youngest. ¹