and on the first day of the second month they assembled the whole congregation and recorded their ancestry by clans and families, counting one by one the names of those twenty years of age or older,
KJV
And they assembled all the congregation together on the first [day] of the second month, and they declared their pedigrees after their families, by the house of their fathers, according to the number of the names, from twenty years old and upward, by their polls.
ASV
And they assembled all the congregation together on the first day of the second month; and they declared their pedigrees after their families, by their fathers’ houses, according to the number of the names, from twenty years old and upward, by their polls.