Kessler twins Ellen and Alice, singer-dancers who performed with Sinatra and Belafonte, dead at 89 - Los Angeles Times

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1. Kessler twins Ellen and Alice, singer-dancers who performed with Sinatra and Belafonte, dead at 89  Los Angeles Times
2. The Kessler Twins sisters Alice and Ellen die together aged 89  The Guardian
3. Entertainment duo the Kessler twins die by assisted suicide, aged 89  CNN
4. The Kessler twins, German entertainment duo who performed with Fred Astaire and Frank Sinatra, die together by assisted suicide  CBS News