Who is Shana Timberlake from 'F' Is for Fugitive: A Kinsey Millhone Mystery and what is their importance?

Shana Timberlake is Jean's mother. She has a reputation for being a loose woman. Despite her faults, however, Shana loved her daughter and did the best she could to raise her. She never told Jean who her father was, believing that the knowledge would only hurt her daughter. Shana, however, remained involved with the father throughout Jean's life, and it was Jean's father that Shana was to meet the night Ann followed her to the spa and killed her.