Her longest-running role was as "Hilda Hinkelmeyer" in 64 episodes (1962-65) of the NBC/CBS sitcom The Joey Bishop Show (1961). In the 1954-55 season, she appeared as "Emily Dodger" in 38 episodes of the CBS sitcom Willy (1954).
On October 21, 2018, she was honored with a Sketch of the Day caricature on the website Star Portraits by a United States based artist known as Odoxesky.
Upon her death, she was cremated and her ashes scattered at sea.
Treen performed onstage in vaudeville and musicals before switching to
film in the 1930s