Roy Michael Sly Obituary
It is always difficult saying goodbye to someone we love and cherish. Family and friends must say goodbye to their beloved Roy Michael Sly of Dewitt, Michigan, who passed away at the age of 79, on April 13, 2026. Leave a sympathy message to the family in the guestbook on this memorial page of Roy Michael Sly to show support.
He was predeceased by: his parents, Joseph Francis Sly and Katherine Jane Sly (Bayley); his nephew David Sly; his parents-in-law, Kenneth Treaster and Frieda Treaster (Scherdt); and his brother-in-law Kenneth Treaster II.
He is survived by: his wife Diane Dorothy Sly (Treaster); his sons, Matthew Charles Sly (Rachel) of Staunton, VA and Michael Kenneth Sly (Kaysi) of Mt Pleasant, MI; his grandchildren, Maxim Sly (Dalanie Mott), Emily Sly, Izzy Sly, Abby Sly, Josh Watters and Lindsay Watters; his brother Joseph Sly; his niece Jennifer Missell; and his great-nieces and great-nephews, Harrison, Bobby and Aspen.
Memorial contributions may be made in Roy's honor to, the American Heart Association (https://www.heart.org.) or to the American Lung Association (https://www.lung.org.).
