Who is Clara Mae Mattingly from Wanda Hickey's Night of Golden Memories and what is their importance?

Clara Mae Mattingly, Appears in Wanda Hickey's Night of Golden Memories - The girl who spells well and has agreed to go to the Junior Prom with Schwartz. She appears to be a pretty good sport as she does not fuss about the soggy car seats after the Prom on the way to the Rooster. She drinks a Pink Lady at the Rooster.