Smith's Bible Dictionary (1863)
(wanderer) was one of the mighty men of David’s guard, according to (1 Chronicles 11:38) The parallel passage— (2 Samuel 23:36)—has “Bani the Gadite,” which is probably the correct reading. (B.C. 1046.)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
HAG'GERI (wanderer), one of David's mighty men. 1 Chr 11:38.
Hitchcock's Bible Names (1869)
Haggi, a stranger