Jacob's sisters are Rachel and Rebecca and they are twins, around 19 or 20
In the Twilight saga, Jacob Black has two older sisters named Rachel and Rebecca. Both sisters are mentioned briefly in the books but do not play major roles in the storyline.
I believe there are 7, Sue,Leah, Jacobs two sisters, and Kim, i think Jared's girlfriend
Rebecca Black is actually mentioned in the book 'Twilight'. AND BREAKING DAWN
If the question is about the character Jacob from Twilight Saga then his sister's names are Rachel and Rebecca.
His last name is Black. He is a member of the Quileute tribe, known for their ability to shape-shift into wolves. He has two older twin sisters, Rachel and Rebecca Black.
Jacobs mom died in a car accident years before. He bings it up in one of the later books.
Quillete Tribe
Because he was in an accident.
I think it is Jacobs sister Rachel.
Rebeca and Rachel
if u are meaning Jacob black out of twilight he actually has 2 sisters, rachael and rebecca and his mum died in a car crash so he lives with his dad, billy black
The sisters are Rosalie and Alice.