This can be stated in active form. Alternate translation: "The divisions by the name of their fathers' houses were as follows" (See: [[rc://en/ta/man/translate/figs-activepassive]])
The phrase "commander of thousands" is probably an official title for a military officer. Possible meanings are 1) the word "thousands" represent the exact amount of soldiers that these commanders led. Alternate translation: "the commanders of 1,000 soldiers" or 2) the word translated as "thousands" does not represent an exact number, but is the name of a large military division. Alternate translation: "the commanders of large military divisions" (See: [[rc://en/ta/man/translate/translate-numbers]])