Moses
Numbers 26:9ESV·traditional attribution

The sons of Eliab: Nemuel, Dathan, and Abiram. These are the Dathan and Abiram, chosen from the congregation, who contended against Moses and Aaron in the company of Korah, when they contended against the LORD

Matthew Henry Presbyterian @wholebiblehenry

This is the register of the tribes as they were now enrolled, in the same order that they were numbered in ch. 1. Observe, I. The account that is here kept of the families of each tribe, which must not be understood of such as we call families, those that live in a house together, but such as were the descendants of the several sons...

Commenting on Numbers 26:5-51

John Gill Reformed Baptist @doctorgill

And the earth opened her mouth, and swallowed them up,.... Not only Dathan and Abiram, but their wives and children, their houses and tents, and all their goods, see Num 16:32 together with Korah; the words being thus rendered, and standing in such close connection with the preceding, some have concluded from hence that Korah was swallowed up with them in the earth; whereas he...

Geneva Bible Notes Reformed @genevanotes

And the sons of Eliab; Nemuel, and Dathan, and Abiram. This [is that] Dathan and Abiram, [which were] famous in the congregation, who strove against Moses and against Aaron in the company of Korah, when they strove against the LORD: (c) In that rebellion of which Korah was head.