When Did Cosmo Allegretti Die?

Cosmo Francis "Gus" Allegretti was an American artist, master puppeteer and actor. He is best known for creating and performing various puppets and roles on the children's television show, "Captain Kangaroo" which ran from October 3, 1955 to December 16, 1984, including Mr. Moose, Bunny Rabbit, Dancing Bear, Dennis the Apprentice, Grandfather Clock, Rollo Hippopotamus, Cornelius the Walrus, Mr Whispers, Word Bird, Miss Worm, Fred from Channel One, the Magic Drawing Board and many others.