1 Chronicles 26:21
The sons of Ladan, the sons of the Gershonites belonging to Ladan, namely, the Jehielites, were the heads of the fathers’ households, belonging to Ladan the Gershonite.
1 Chronicles 23:7
                            Of the Gershonites were 
1 Chronicles 6:17
These are the names of the sons of Gershom: Libni and Shimei.
1 Chronicles 29:8
                            
Treasury of Scripture Knowledge
Summary
                            As concerning the sons of Laadan; the sons of the Gershonite Laadan, chief fathers, even of Laadan the Gershonite, were Jehieli.                        
                    Laadan
General references
Bible References
Laadan
                                        1 Chronicles 6:17                                        
                                                            
                        These are the names of the sons of Gershom: Libni and Shimei.
                                    General references
                                        Numbers 3:32                                        
                                                            
                        and Eleazar the son of Aaron the priest was the chief of the leaders of Levi, and had the oversight of those who perform the duties of the sanctuary.