The Kohath family were descendants of Aaron the priest from the family group of Levi. Part of the Kohath family was given 13 towns in the areas that belonged to Judah, Simeon, and Benjamin.
The people from the Gershon family were given 13 towns. These towns were in the areas that belonged to Issachar, Asher, Naphtali, and the half of Manasseh that was in Bashan.