Bible dictionaries
Hirah
What Bible dictionaries say about “Hirah”, one article after the other.
International Standard Bible Encyclopedia (ISBE 1915)
hi'-ra (chirah; Septuagint Eiras): A native of Adullam, and a "friend" of Judah (Ge 38:1,12). The Septuagint and the Vulgate (Jerome's Latin Bible, 390-405 A.D.) both describe him as Judah's "shepherd."
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith