Donald W. O’Reilly, age 102, World War II U.S. Army Air Forces veteran, a resident of Naperville, IL since 1958, passed away peacefully on Friday, March 29, 2024, at St. Patrick’s Residence in Naperville. He was born on November 16, 1921, in Milwaukee, WI.

Former spouse of the late Dorothy O'Reilly (nee Ducey), beloved father of Michael O'Reilly, Patrick (Nancy) O'Reilly, the late Timothy O'Reilly, Kathleen O'Reilly, Maureen Milligan, Colleen Mersman, Daniel (Nancy) O'Reilly and Erin (Brian) Schiber, adored grandfather of fifteen, cherished great-grandfather of eleven, devoted son of the late John and Harriet (nee Prieser) O’Reilly, dear brother of the late Jerome, Patricia and Tommy, fond uncle, great-uncle and friend of many.

Don grew up in Milwaukee, WI and attended Archbishop Sebastian Messmer High School. Don served as a military policeman (MP) in the U.S. Army Air Force from 1942 to 1945, stationed in England. After his honorable discharge, he received a degree in mechanical engineering from Marquette University in Milwaukee (earned over eight years of night school while working and raising a family). Don was employed as an engineer for over 40 years with Western Electric in Milwaukee and later with Western Electric - The Hawthorne Works in Cicero, IL.

Don was a longtime member of SS. Peter & Paul Catholic Church, Judd Kendall VFW Post 3873, and American Legion Post 43, all in Naperville. He was also a member of Heritage League of the Second Air Division (USAAF), Elgin, IL, an organization dedicated to honoring and remembering the service and sacrifices of the members of the 2nd Air Division of the 8th Army Air Forces during World War II. Don was a lifelong Green Bay Packers fan.