'Chief Fathers' in the Bible

Take the sum of the prey that was taken, both of people and of animals, you, and Eleazar the priest, and the chief fathers of the congregation:

So concerning them Moses commanded Eleazar the priest, and Joshua the son of Nun, and the chief fathers of the tribes of the children of Israel:

And the chief fathers of the families of the children of Gilead, the son of Machir, the son of Manasseh, of the families of the sons of Joseph, came near, and spoke before Moses, and before the leaders, the chief fathers of the children of Israel:

Then Solomon assembled the elders of Israel, and all the heads of the tribes, the chief fathers of the children of Israel, unto Jerusalem, to bring up the ark of the covenant of the LORD out of the city of David, which is Zion.