Sidsel Olsdatter (maybe Sissel Olsdatter)

HI again, Looking for another individual. I have her date of birth approx 1762-1765. She married my 4th great grandfather Engebret Jacobsen Vansum, and they lived on the Baarli farm. My 3rd great grandfather was Jacob Embretsen(Engebretsen) and I believe additional children are: Børger Embrethsen , Jacob Embrethsen, Ole Embrethsen, Anders Embrethsen, Mari Embrethsdatter. I am looking for family information on Sidsel, who her mother and father were, her exact birthday, etc. Im trying to find where she came from. Any help is appreciated :)