Hashabiah was leader of the family of Hilkiah. Nethanel was leader of the family of Jedaiah.
A record of the Levite families was kept during the years when Eliashib, Joiada, Johanan, and Jaddua served as high priest. Another record of the priests was kept during the reign of Darius the Persian.
References for Nehemiah 12:22
A record of the heads of the Levite families was kept in down to the days of Johanan, the grandson of Eliashib.
References for Nehemiah 12:23
These were the family leaders of the Levites: Hashabiah, Sherebiah, Jeshua, Binnui, Kadmiel, and other associates, who stood opposite them during the ceremonies of praise and thanksgiving, one section responding to the other, as commanded by David, the man of God.
References for Nehemiah 12:24
This included Mattaniah, Bakbukiah, and Obadiah. Meshullam, Talmon, and Akkub were the gatekeepers in charge of the storerooms at the gates.
These all served in the days of Joiakim son of Jeshua, son of Jehozadak, and in the days of Nehemiah the governor and of Ezra the priest and scribe.
References for Nehemiah 12:26
For the dedication of the new wall of Jerusalem, the Levites throughout the land were asked to come to Jerusalem to assist in the ceremonies. They were to take part in the joyous occasion with their songs of thanksgiving and with the music of cymbals, harps, and lyres.
The singers were brought together from the region around Jerusalem and from the villages of the Netophathites.
They also came from Beth-gilgal and the rural areas near Geba and Azmaveth, for the singers had built their own settlements around Jerusalem.
The priests and Levites first purified themselves; then they purified the people, the gates, and the wall.
I led the leaders of Judah to the top of the wall and organized two large choirs to give thanks. One of the choirs proceeded southward along the top of the wall to the Dung Gate.
References for Nehemiah 12:31