Amanda Ripley-McClaren is the daughter of Ellen Ripley. She was still a child when her mother disappeared, following the loss of the Nostromo. She died at the age of sixty-six, two years before her mother's return fifty-seven years after her initial disappearance. Sometime before her death she married, taking the name 'McClaren', but had no children.
Trivia
Amanda's picture was actually the picture of Sigourney Weaver's real-life mother Elizabeth Inglis.
According to the novelization, Amanda died of cancer.