Rosemarie D. Kosik, age 89, of Naperville, IL passed away peacefully on January 7, 2026, with family by her side.
Rosemarie was the loving sister of the late Frank Wesolowski (Ann) and the late Robert Weslow (Patricia).
She was the cherished mother of Jean Greene (Anthony) and Laura Cosenza (John).
She was the devoted Grandmother to Jennifer Cooke (James), Julia Francisco (Diego), Sean Cosenza, and Zachary Cosenza.
Rosemarie was the fond Aunt of Frank, Mary, Dave, Diane & Matthew: Dawn & Jill.
Visitation will be held at St. Francis of Assisi Catholic Church on Saturday, January 24, 2026, from 10:00 am to 11:00 am. Mass is at 11:00.
In lieu of flowers, donations can be made to Humane World for Animals or you can bring a non-perishable petfood item to church to drop off.
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