שרח בת אשר
Who was Serach's father?
3. son of Yishvi ) בן של ישוי
The Ramban (26:46) says that the Targum Unkeles translates ושם בת אשר שרח , ושום ברת אתת אשר סרח
The name of the daughter of Osher’s wife was Serach.
(She wasn’t Osher’s daughter but his wife’s daughter)
The Ramban explains , Serach’s mother was married and had only one child (Serach) Osher married her after her husband died.*
The Techeilas Mordechai (Kur Zahav) says that she was the daughter of Yishvi the son of Osher. When Yishvi died ,Osher married his daughter in law. (Issur D’Orysa)**
A second possibility is that she was the grand daughter of Yishvi and Osher married his son Yishvi’s daughter in law (Issur D’rabanan)
The Sefer Hayoshor*** says she was the daughter of Malchiel ben Eilam, (Eilam son of Sheim)
* Shu"t Chasam Sofer E,H,76 proves from here
the Halacha in Rema Ch.M. 42:15 "adopted children
can be called children in documents etc."
**Kodem Matan Torah
***Thanks to R. M.Appel Shlita (for Mareh Makom)
LEVI'S WIFE NAME
(Bamidbar 26:59) אשר ילדה אותה ללוי במצרים
The פענח רזא quotes a Midrash that Levi's
wife was called אותה