Smith's Bible Dictionary (1863)
(filthy) (sometimes written GESHAN), one of the sons of Judah, in the genealogy of Judah and family of Caleb.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
GE'SHAM (filthy), a descendant of Judah; also improperly written Geshan. 1 Chr 2:47.