Reference: Kohathites
Easton
the descendants of Kohath. They formed the first of the three divisions of the Levites (Ex 6:16,18; Nu 3:17). In the journeyings of the Israelites they had the charge of the most holy portion of the vessels of the tabernacle, including the ark (Nu 4). Their place in the marching and encampment was south of the tabernacle (Nu 3:29,31). Their numbers at different times are specified (Nu 3:28; 4:36; 26:57,62). Samuel was of this division.
See Verses Found in Dictionary
These are the names of the sons of Levi according to their genealogy: Gershon, Kohath, and Merari. Levi lived 137 years.
The sons of Kohath: Amram, Izhar, Hebron, and Uzziel. Kohath lived 133 years.
Counting every male one month old or more, there were 8,600 responsible for the duties of the sanctuary. The clans of the Kohathites camped on the south side of the tabernacle,
Their duties involved the ark, the table, the lampstand, the altars, the sanctuary utensils that were used with these, and the screen-and all the work relating to them.
These were the Levites registered by their clans: the Gershonite clan from Gershon; the Kohathite clan from Kohath; the Merarite clan from Merari.
Those registered were 23,000, every male one month old or more; they were not registered among the [other] Israelites, because no inheritance was given to them among the Israelites.