Gary P. Hahn, 69 of Green Bay, died on Monday, May 04, 2020. He was born in Milwaukee on August 28, 1950 to the late William A. and Irene M. (Teschner) Hahn. Prior to his retirement, Gary was a mechanical engineer employed with the Sanimax Co. in Green Bay. Survivors include one daughter, Karen (Nicholas) Dequaine and two grandchildren, all of Casco. As per family wishes a private memorial will be held.