

Donald F. Stazy, of Bartlett, Illinois, passed away on September 20, 2026, at the age of 93. Born on August 23, 1933, in Chicago to Frank and Irene Stazy, Don grew up with a deep curiosity about the world around him. He attended Mount Carmel High School, graduating in 1951, before being drafted into the United States Army in 1952. Following his honorable discharge in 1954, he pursued his passion for science at St. Joseph’s College in Indiana, graduating in 1959 with a Bachelor of Science degree in Geology.
As a dedicated and accomplished professional geologist, Don spent 15 years contributing his expertise to Soil Test Inc. He later channeled his entrepreneurial spirit into establishing his own consulting firm, D.F. Stazy and Associates, in 1980. His distinguished career took him across the country and around the globe, working alongside prominent engineering firms, private corporations, the U.S. Army Corps of Engineers, and numerous government agencies.
Beyond his professional achievements, Don spent a lifetime engaged in personal study, reconciling his knowledge of geology, science, and history with Scripture and his deep Catholic faith. He held a profound interest in the Shroud of Turin, frequently hosting seminars and presentations to educate others on its history and scientific facts. Dedicated to service and fellowship, Don was also a proud member of the Knights of Columbus and American Legion. He was a man of many passions, finding immense joy in fly fishing, traveling, exploring history, flying as a licensed pilot, and embracing the beauty of the outdoors.
Don is survived by Joan, his beloved wife of seventy years; his children, Katharine (Joe) Skalski, Carrie (Art) Tuggle, Don (Joan) Stazy Jr., and Mark (Nancy) Stazy; nine grandchildren; fourteen great-grandchildren; three step great-grandchildren; and his sister, Audrey Buttelmann. Don leaves behind a profound legacy of love, faith, and dedication. His love for his family has always been the cornerstone of his life; he dedicated countless hours to teaching and sharing the vital importance of unconditional love, unity, and devotion within the home. His enduring legacy of warmth, wisdom, and faith will continue to guide and inspire his family for generations to come. He will be deeply missed by his family, friends, and all who had the privilege of knowing him.
Visitation Tuesday, October 6, 2026 from 10:30 a.m. until time of Funeral Mass, 11:00 a.m. at St. Peter Damian Catholic Church, 131 S. Crest Avenue, Bartlett, Illinois 60103.
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