She was suppose to play the part of Rusty in the movie Footloose but dropped and would be replaced by her Square Pegs co-star Sarah Jessica Parker.
Tracy is the niece of David Nelson.
Tracy has three brothers: Matthew, Gunnar, and Sean.
The football great (and later sports broadcaster) Tom Harmon, and the 1940s "B"-movie actress Elyse Knox are Tracy's maternal grandparents.
In 1987, a month after she wed William R. Moses, Tracy was diagnosed with Hodgkin's Disease.
She has a son, Elijah, together with her former boyfriend, celebrity Chris Clark.
Tracy has a third brother, Sam Nelson.
Tracy was married to actor William R. Moses from 1987 to 1997, and they have a daughter, Remington Elizabeth, who was born in 1992.