Dennis William Johnston Obituary
The passing of Dennis William Johnston (Lake Forest, Illinois) occurred on July 12, 2026. Dennis, born on September 24, 1947, is remembered by those who knew him. Leave a sympathy message to the family on the memorial page of Dennis William Johnston to pay them a last tribute.
He was loved and cherished by many people including: his parents, William John Johnston and Ethel Louise Johnston (Baird); his wife Cathryn "Cappy" Johnston; his stepson Jeffrey Van Leuven (Jackie); his grandchildren, Vee, Evan Van Leuven and Corbin Chandler; his siblings, Ronald Johnston (Debbie), Louise Davis and Diane Biller (Larry); his nephews, Shawn Johnston, Josh Johnston and Brad Davis; and his niece Lindsey Haines.
In lieu of flowers, the family requests that donations be made to Mayo Clinic Neurology Research in his honor at https://give.mayoclinic.org.
