View Jon Hadenfeldt Jon Lee Hadenfeldt, age 80, of Sioux Rapids, Iowa died April 27, 2020 at his home in Sioux Rapids.  Burial will be at a later date in the Lone Tree Cemetery in Sioux Rapids. The Sliefert Funeral Home in Sioux Rapids is in charge of the arrangements.  Jon Lee Hadenfeldt, the son of Leonard G Hadenfeldt and Elvira F. (Vogel) Hadenfeldt, was born on June 26, 1939 in Iowa City, Iowa. He attended school in Cornell and Linn Grove. At age 17 (1956) Jon ran awa…

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