The sons of Korah were Assir, Elkanah, and Abiasaph. These were the clans of the Korahites.
Cross References
Numbers 26:11However, the line of Korah did not die out.
1 Chronicles 6:22The descendants of Kohath: Amminadab his son, Korah his son, Assir his son,
1 Chronicles 6:23Elkanah his son, Ebiasaph his son, Assir his son,
1 Chronicles 12:6Elkanah, Isshiah, Azarel, Joezer, and Jashobeam, who were Korahites;
Treasury of Scripture
And the sons of Korah; Assir, and Elkanah, and Abiasaph: these are the families of the Korhites.
Korah
Exodus 6:21
And the sons of Izhar; Korah, and Nepheg, and Zichri.
Numbers 16:1,32
Now Korah, the son of Izhar, the son of Kohath, the son of Levi, and Dathan and Abiram, the sons of Eliab, and On, the son of Peleth, sons of Reuben, took men: …
Numbers 26:9-11
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: …
Elkanah
1 Samuel 1:1
Now there was a certain man of Ramathaimzophim, of mount Ephraim, and his name was Elkanah, the son of Jeroham, the son of Elihu, the son of Tohu, the son of Zuph, an Ephrathite:
1 Chronicles 6:23,27,28
Elkanah his son, and Ebiasaph his son, and Assir his son, …