Joah
Easton's Dictionary
Jehovah his brother; i.e., helper. (1.) One of the sons of Obed-edom (1 Chr. 26:4), a Korhite porter.
(2.) A Levite of the family of Gershom (1 Chr. 6:21), probably the same as Ethan (42).
(3.) The son of Asaph, and “recorder” (q.v.) or chronicler to King Hezekiah (2 Kings 18:18, 26, 37).
(4.) Son of Joahaz, and “recorder” (q.v.) or keeper of the state archives under King Josiah (2 Chr. 34:8).
Smith's Dictionary
(whose brother (i.e. helper) is Jehovah).
The son of Asaph, and chronicler or keeper of the records to Hezekiah. (Isaiah 36:3,11,22) (B.C. 776.) The son or grandson of Zimmah, a Gershonite. (1 Chronicles 6:21) The third son of Obed-edom, (1 Chronicles 26:4) a Korhite, and one of the doorkeepers appointed by David. (B.C. 1014.) A Gershonite, the son of Zeimmah and father of Eden. (2 Chronicles 29:12) The son of Joahaz, and annalist or keeper of the records to Josiah. (2 Chronicles 34:8) (B.C. 623.)