Why is there no information about Renee blaine the murdered wife in shawshank redemption on internet Didnt she do much films?

Renee Blaine is a fictional character from Stephen King's novella "Rita Hayworth and the Shawshank Redemption", which was adapted into the movie "The Shawshank Redemption". She does not exist in real life, so there is no information about her outside of the story.