John W. Olson, age 66, passed away suddenly on July 20, 2018. Beloved husband of Denise (nee Fagerson). Loving father of Julie Olson, Johnny and Step-children Danielle (Gill) Bloomer, Angelo (Stacy) Loverde and Gina Loverde. Fond grandfather of Tyler, Angelina, Michael, Jaron, A.J., Nick, Francesca and Kalli. Dear brother of Wally Olson and Lori (John) Hansen. Memorial Mass Thursday, July 26, 2018 at 10:30 a.m. at Our Lady of Hope Church 9711 W Devon Ave, Rosemont, IL 60018 Phone: (847) 825-4673. Interment will be private.