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Dennis M. Sheehan

March 4, 1941 January 4, 2021
Dennis M. Sheehan
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Obituary for Dennis M. Sheehan

Dennis Michael Sheehan, aged 79, passed suddenly on January 4, 2021. He was a long-time resident of Oak Park, Illinois and a retired Broker from the Chicago Board of Trade.

Dennis (or “Denny Mike” as his family knew him) was born into this life on March 4, 1941 in Chicago, Illinois to Dr. Edward Sheehan and Phyllis Sheehan (nee Freeman). He had four brothers who predeceased him, Edward, Phillip, Terrance, and Thomas Sheehan. Dennis attended grade school at St. Thomas Aquinas in Chicago, Illinois and then St. Vincent Ferrer in River Forest, Illinois. He then graduated from Oak Park River Forest High School in 1959. Dennis joined the United States Army Reserve in 1963 and proudly served his country until 1969. He worked as a Broker at the Chicago Board of Trade alongside his brothers Terrance and Thomas. Dennis worked at the CBOT until retirement in 1998.

Dennis married the love of his life, Joan K. Sheehan (nee McGough) on October 8, 1983. He became a father on June 13, 1986 with the birth of his first son Seamus. Their two other sons, Eamonn and Padraig were born on April 4, 1988 and October 13, 1990 respectively. Dennis lived for his boys and grew to become not only their father but their best friend. After his own father passed when Dennis was only 16, he cherished every moment of being a father and was incredibly proud of his sons’ accomplishments.

Although only standing a mere 5’7”, Dennis had a towering personality. Always ready with a joke, Dennis brought a smile to everyone who had the pleasure of meeting him. He was instantly recognized every March as he celebrated his Irish heritage at area St. Patrick’s Day parades in his kilt. Dennis loved St. Patrick’s Day and was a Marshall in the Chicago St. Patrick’s Day Parade for over 30 years. He also immensely enjoyed hunting and took great pride in sharing his love of the outdoors with his sons.

Dennis is survived by his wife Joan, his sons Seamus, Eamonn, and Padraig, and numerous nieces, nephews, grandnieces, and grandnephews.

A private funeral service will be held at St. Giles Catholic Church on January 12, 2021. A “Celebration of Life” Memorial Service will be held at a later date. In lieu of flowers, the family requests that donations be made to Misericordia (www.misericordia.org).

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Misericordia

6300 North Ridge Avenue
Chicago, IL 60660
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