Smith's Dictionary
(hearing (prayer), a lay man of Israel, of the family of Harim, who had married a foreign wife, and divorced her in the time of Ezra. (Ezra 10:31) (B.C. 458.)
International Standard Bible Encyclopedia
shim'-e-on (shim`on; elsewhere "Simeon"): One of the sons of Harim who had married foreign wives (Ezr 10:31; Codex Vaticanus and Codex Alexandrinus Semeon; Lucian, Sumeon = 1 Esdras 9:32, "Simon Chosameus").