- Only one of nine original Mouseketeers to last the entire duration of the The Mickey Mouse Club (1955) from 1955 to 1959.
- A nude photo spread of Doreen appeared in the December, 1976, issue of the men's magazine Gallery. She also posed nude for the same magazine again in 1979.
- Has worked for Frank Zappa.
- Parents were American.
- Profiled in the 2016 book, "X Child Stars: Where Are They Now?", by Kathy Garver and Fred Ascher.
- Daughter of Sid Tracey and Bessie Hay.
- Good friends with fellow ex-Mouseketeers Cheryl Holdridge and Annette Funicello.
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