The Levites: Families, As Numbered of Gershom
Source: TTT
Numbers 3:18, 21, 22
These were the names of the sons of Gershon by their clans: Libni and Shimei. / From Gershon came the Libnite clan and the Shimeite clan; these were the Gershonite clans. / The number of all the males a month old or more was 7,500.