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.
From the sons of Reuben, the firstborn of Israel, according to the records of their clans and families, counting one by one the names of every male twenty years of age or older who could serve in the army,
KJV
And the children of Reuben, Israel’s eldest son, by their generations, after their families, by the house of their fathers, according to the number of the names, by their polls, every male from twenty years old and upward, all that were able to go forth to war;
ASV
And the children of Reuben, Israel’s first-born, their generations, by their families, by their fathers’ houses, according to the number of the names, by their polls, every male from twenty years old and upward, all that were able to go forth to war;