Brown Driver Briggs

 Zaccur or Zacchur = "mindful"
1. father of Shammua, the Reubenite spy
2. a Simeonite of the family of Mishma
3. a Merarite Levite, son of Jaaziah
4. son of Asaph the singer
5. the son of Imri who assisted Nehemiah in rebuilding the wall
6. a Levite, or family of Levites, who signed the covenant with Nehemiah
7. a Levite whose son or descendant Hanan was one of the treasurers
over the treasuries appointed by Nehemiah