Treasury of Scripture Knowledge
Summary
                            Of Jeduthun: the sons of Jeduthun; Gedaliah, and Zeri, and Jeshaiah, Hashabiah, and Mattithiah, six, under the hands of their father Jeduthun, who prophesied with a harp, to give thanks and to praise the LORD.                        
                    Gedaliah
Jeshaiah
Mattithiah
General references
Bible References
Gedaliah
                                        1 Chronicles 25:9                                        
                                                            
                        The first lot went to Asaph's son Joseph and his relatives and sons  --  twelve in all, the second to Gedaliah and his relatives and sons  --  twelve in all,
                                    Jeshaiah
                                        1 Chronicles 25:15                                        
                                                            
                        the eighth to Jeshaiah and his sons and relatives  --  twelve in all,
                                    Mattithiah
                                        1 Chronicles 25:21                                        
                                                                                                                                the fourteenth to Mattithiah and his sons and relatives  --  twelve in all,
                                    
                                        1 Chronicles 15:18                                        
                                                            
                        along with some of their relatives who were second in rank, including Zechariah, Jaaziel, Shemiramoth, Jehiel, Unni, Eliab, Benaiah, Maaseiah, Mattithiah, Eliphelehu, Mikneiah, Obed-Edom, and Jeiel, the gatekeepers.
                                    General references
                                        Numbers 3:20                                        
                                                                                                                                The sons of Merari by their families were Mahli and Mushi. These are the families of the Levites by their clans.
                                    
                                        Psalm 98:5                                        
                                                            
                        Sing to the Lord accompanied by a harp, accompanied by a harp and the sound of music!