1 Chronicles 16:41
And with them Heman and Jeduthun, and the rest that were chosen, who were expressed by name, to give thanks to the LORD, because his mercy endures for ever;
Nave's Topical Index—AKJV

1 Chronicles 25:1
Moreover David and the captains of the host separated to the service of the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals: and the number of the workmen according to their service was:
Nave's Topical Index—AKJV