John Gill Commentary Nehemiah 3:4

"And next unto them repaired Meremoth the son of Uriah, the son of Hakkoz. And next unto them repaired Meshullam the son of Berechiah, the son of Meshezabel. And next unto them repaired Zadok the son of Baana." — Nehemiah 3:4 (ASV)

And next unto them repaired Meremoth, the son of Uriah, the son
of Koz
And the men under him; see (Ezra 8:33) , this part of the wall on which they worked was not wholly demolished, only weakened, and therefore did not rebuild it, but repaired and strengthened it, and this phrase is used all along afterwards:

and next unto them repaired Meshullam, the sort of Berechiah, the son
of Meshezabeel: and next unto them repaired Zadok, the son of Baana ;
but who they were cannot be said.