American Veteran 04

Donald W. Diekman

1925 ~ 2019 (age 93)


     Donald W. Diekman, 93, died peacefully in the Door County Medical Center with his wife, Marianne and children, Karl and Kristine, by his side on April 11, 2019. His sister Jean Matz, sister- and brother-in-law Martha (Mendius) and Don Garnett, and many nieces and nephews will also miss him greatly.

     Don was born in Riverside, Illinois in 1925. He had a wonderful young life with many adventurous boy friends living within walking distance of the Des Plaines River where they all had a lot of fun. After graduation from high school, he joined the Navy Air Corps in World War II. He is one of the Greatest Generation.

     Upon returning home from the Navy in 1946, he found his parents vacationing in Door County, Wisconsin where he fell in love with the people and the area. Known as “Diek”, he ran excursion and fishing boats out of South Shore Pier in Ephraim, knowing all the best fishing spots in Eagle Harbor.

     He went to college at Bradley University where he met his wife Marianne (Mendius) and life partner. Married for 67 years, they continued their adventures in Ephraim and Western Springs outside of Chicago. They traveled the world together widely.

     Don was president of a family owned manufacturing company which is still in existence today. He remained a strong leader sitting on the board of directors until 2019.

     They have two children, Karl Diekman and Kristine Diekman, both of whom have homes in Ephraim. Don taught Kristine one of the most important life lessons; always look ahead and down while sailing in Eagle Harbor. He passed on to Karl respect for nature and love of Door County.

     Don loved fishing and sailing in Eagle Harbor and golfing at Peninsula State Park. He especially enjoyed splitting and stacking firewood for his fireplace. He never got tired of watching the sunsets from his house on the shore.

     Should friends desire, contributions may be sent to the Door County Medical Center Foundation for the Skilled Nursing Facility and Hospice Care Capital Campaign, P.O. Box 230, Sturgeon Bay, WI 54235 or charity of your choice.

     Casperson Funeral Home & Cremation Services in Sister Bay is assisting the Diekman family. Expressions of sympathy, memories, and photos of Don may be shared with his family through his tribute page at

To send flowers to Donald's family, please visit our floral section.


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