Numbers 1:18

1:18 and they assembled the entire community together on the first day of the second month. Then the people recorded their ancestry by their clans and families, and the men who were twenty years old or older were listed by name individually,

Numbers 1:20

1:20 And they were as follows:

The descendants of Reuben, the firstborn son of Israel: According to the records of their clans and families, all the males twenty years old or older who could serve in the army were listed by name individually.

Numbers 27:1

Special Inheritance Laws

27:1 Then the daughters of Zelophehad son of Hepher, the son of Gilead, the son of Machir, the son of Manasseh of the families of Manasseh, the son Joseph came forward. Now these are the names of his daughters: Mahlah, Noah, Hoglah, Milcah, and Tirzah.

Numbers 33:54

33:54 You must divide the land by lot for an inheritance among your families. To a larger group you must give a larger inheritance, and to a smaller group you must give a smaller inheritance. Everyone’s inheritance must be in the place where his lot falls. You must inherit according to your ancestral tribes.