From BiblePortal Wikipedia

Smith's Bible Dictionary [1]

Ish'uah. (Quiet). The second son of Asher.  Genesis 46:17. (B.C. 1706).

Fausset's Bible Dictionary [2]

 Genesis 46:17;  1 Chronicles 7:30.

Holman Bible Dictionary [3]

 Genesis 46:17Ishvah

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [4]

(Heb. Yishvah', יַשְׁוָה , Uniform; Septuag. Ιεσούα , but Ι᾿Εσσουά in Genesis; Vulg. esua), the second named of the sons of Asher ( Genesis 46:17;  1 Chronicles 7:30, in which latter passage it is Anglicized "Isuah"). B.C. 1856. He appears to have left no issue (compare  Numbers 26:44).