Thomas F. Kosar

Visitation for Thomas F. Kosar, 84, of North Barrington, will be on Monday, December 8, 2025, from 2:00 PM to 8:00 PM. with a Funeral Service at 7:00 PM at the Ahlgrim Family Funeral Home, 415 S. Buesching Road, Lake Zurich, IL. The Interment will be private.

Tom was born on December 28, 1940, to Frank and Mary Kosar. He passed away on December 2, 2025, at home.

Tom “TFK” was the beloved husband of 60 years to Joy Kosar; loving father of Dana Burgess and Tina (Tim) Lilja; cherished grandfather of Kalie, Brianna, Sean, Jordyn, Brett, Tyler and Tonia; and fond great-grandfather of Skylar, Jazlene, Jaxon, Maverick, Leighton, Lincoln, Tommy, Julianna, Benjamin, Sarah, and Luke.