Smith's Bible Dictionary (1863)
(strong), the first-born of Samuel as the text now stands. (1 Chronicles 6:28) (13); but in (1 Samuel 8:2) the name of his first-born is Joel.
Hastings' Dictionary of the Bible (1898)
VASH'NI occurs in 1 Chr 6:28 as the name of the first-born of Samuel, while in 1 Sam 8:2 the name is Joel. As Vashni, with a very slight modification, would mean "and the second," it is probable that in 1 Chr 6:28 the name of Joel has dropped out.
Hitchcock's Bible Names (1869)
the second; changed; a tooth