Here are the men who served, together with their sons: From the Kohathites: Heman, the musician, the son of Joel, the son of Samuel (NIV)
These and their sons served of the Kohathites: Heman, the singer, the son of Joel, the son of Samuel [the great prophet and judge] (AMP)
And these are they that waited with their children. Of the sons of the Kohathites: Heman a singer, the son of Joel, the son of Shemuel, (KJV)