Who is Forest Ann from The Persian Pickle Club and what is their importance?

Forest Ann is Tyrone's sister, and therefore Nettie's sister in law and Velma's aunt. A member of the Persian Pickle Club and a widow, Forest Ann is known within the Club for her ongoing relationship with the married town doctor, a relationship that the Club members believe does them both good. Through Forest Ann, the narrative again explores issues of ambiguous morality and how the value of friendship overrides that morality in the name of addressing human need.