Extended Strong's Hebrew Lexicon (Brown-Driver-Briggs based)
Perez
Usage: A man of the tribe of Judah living at the time of Egypt and Wilderness, first mentioned at Gen.38.29; son of: Judah (H3063) and Tamar (H8559); brother of: Zerah (H2226I); half-brother of: Er (H6147), Onan (H0209) and Shelah (H7956); father of: Hezron (H2696H) and Hamul (H2538) § Perez or Pharez = "breach" twin son with Zarah of Judah by Tamar and ancestor of two families of Judah, the Hezronites and Hamulites; from the Hezronites came the royal line of David and Christ