John Gill Commentary Nehemiah 3:30

"After him repaired Hananiah the son of Shelemiah, and Hanun the sixth son of Zalaph, another portion. After him repaired Meshullam the son of Berechiah over against his chamber." — Nehemiah 3:30 (ASV)

After him repaired Hananiah the son of Shelemiah, and Hanun
the sixth son of Zalaph, another piece
This last man had six sons; but only his youngest son worked at this work, which is noted to his great commendation:

after him repaired Shelemiah the son of Berechiah, over against his
chamber ;
the same as in (Nehemiah 3:4) who having finished what he engaged in there, took his part where his chamber was, and repaired over against that.