Donald W. Gilligan, age 83, U.S. Army Veteran; beloved husband of the late Patricia Gilligan; loving father of Michael Gilligan, Jean (Garrett) Gornicki, Thomas Gilligan, John Gilligan, and Timothy (Vicki) Gilligan; cherished grandfather of Robert Gilligan, Ryan Gilligan, Connor (Elizabeth) Gilligan, Brian (Claire) Gornicki, Jeanne Gilligan, Kyle Gilligan, Miranda Gilligan, Taylor Gilligan, Collin Gilligan and the late Kelly Gilligan; dear great-grandpa of Calum Gilligan; devoted brother of Lynn Cummings and the late Edward (Michael). Visitation Friday, May 24, from 4 to 9 pm; Funeral Prayers Saturday, May 25, 9 am at Kolbus-John V. May Funeral Home, 6857 W Higgins Ave. Chicago. Procession to St. Cornelius Church for 10 am Mass of Christian Burial. In lieu of flowers memorials can be made to American Cancer Society; https://donate3.cancer.org .  Interment Maryhill Cemetery. For more information please call 773-774-3232.