en_tn/1ch/09/09.md

numbered 956

"numbered nine hundred and fifty-six people" (See: rc://en/ta/man/translate/translate-numbers and rc://en/ta/man/translate/figs-ellipsis)

heads of fathers' houses for their fathers' houses

"leaders of their extended families." Extended families are people related to each other who usually live in different houses, what the UDB calls "clans."