I Chronicles 6:2 Midrash

וְאֵ֛לֶּה שְׁמ֥וֹת בְּֽנֵי־גֵרְשׁ֖וֹם לִבְנִ֥י וְשִׁמְעִֽי׃

And these are the names of the sons of Gershom: Libni, and Shimei.

Read midrashic interpretation of I Chronicles 6:2: and classical rabbinic exegesis.