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Secures niche as minor actress

Mary Treen, Cousin Tilly in It's a Wonderful Life

Mary Treen (March 27, 1907 – July 20, 1989).

Mary Treen (born Mary Louise Summers) was an American film and television actress. A minor actress for much of her career, she managed to secure a plain, unassuming niche for herself in the Hollywood of the 1940s, 1950s, and 1960s.

Treen appears in the movie It’s a Wonderful Life as Cousin Tilly. She also guests in three episodes of The Donna Reed Show in “The Beaded Bag” (Season 1, Episode 12); “Weekend” (Season 3, Episode 1); and “Do Me a Favor – Don’t Do Me Any Favors” (Season 8, Episode 7).


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