White, one of the two sons of Gershon, the son of Levi (Ex. 6:17; Num. 3:18, 21). (See LAADAN.)
Libni
Libni appears in the long family lists of the priestly tribe of Levi. He is named as a son of Gershon, along with his brother Shimei, in Exodus 6 and Numbers 3, and his descendants are counted as the family of the Libnites. A second Libni turns up in 1 Chronicles 6, this time in the line of Merari. These are short entries, and the Bible says nothing more about the man himself. Their point is that each family among the Levites had its name written down and its own place in the work of the tabernacle.
4 verses
Exodus
The sons of Gershon; Libni, and Shimi, according to their families.
Numbers
And these are the names of the sons of Gershon by their families; Libni, and Shimei.
Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites.
1 Chronicles
The sons of Merari; Mahli, Libni his son, Shimei his son, Uzza his son,
From Easton's Bible Dictionary
Matthew George Easton, 1897