4 occurrences in 4 dictionaries
Reference: Jachan
Easton
mourner, one of the chief Gadite "brothers" in Bashan (1Ch 5:13).
Morish
Ja'chan
Head of a family of Gad. 1Ch 5:13.
Smith
Ja'chan
(affliction), one of seven chief men of the tribe of Gad.
1Ch 5:13