Their genealogies were recorded according to the heads of their families—20,200 mighty men of valor.
KJV
And the number of them, after their genealogy by their generations, heads of the house of their fathers, mighty men of valour, [was] twenty thousand and two hundred.
ASV
And they were reckoned by genealogy, after their generations, heads of their fathers’ houses, mighty men of valor, twenty thousand and two hundred.