What is edith vonnegut siblings?

Edith Vonnegut had one sibling named Kurt Vonnegut. Kurt Vonnegut was a famous American writer known for his satirical and anti-war novels such as Slaughterhouse-Five, Cat's Cradle, and Breakfast of Champions. He was born on November 11, 1922, and died on April 11, 2007. Kurt Vonnegut was also a soldier in World War II and was taken as a prisoner of war by Germans. Edith and Kurt Vonnegut had a close relationship throughout their lives, and Edith even contributed to some of Kurt's writing, such as the character of Montana Wildhack in Slaughterhouse-Five.