Calcol in Fausset's Bible Dictionary
A man of Judah, descended from Zerah (1 Chronicles 2:6).
Probably identical with Chalcol or Calcol, the same in the
Hebrew, one of the four wise men whom Solomon exceeded (1
Kings 4:31). He and Darda or Dara are called "the sons of
Mahol," i.e. of the choir; they were the famous musicians, two
of whom are named in the titles of Psalm 88 and Psalm 89.
However, if Mahol is a proper name, he is their immediate
father, Zerah their ancestor, of the great family of Pharez of
Judah.
Read More about Calcol in Fausset's Bible Dictionary