Thomas L. O'Leary Obituary

With solemn reverence, we commemorate Thomas L. O'Leary of Mascoutah, Illinois, born in East Saint Louis, Illinois, whose life came to an end on August 7, 2025 at the age of 84, leaving behind cherished memories. Leave a sympathy message to the family in the guestbook on this memorial page of Thomas L. O'Leary to show support.

He was predeceased by: his parents, Clyde O'Leary and Mabel O'Leary; his brother Gary; his son Gary; his stepson Cevin West; and his son-in-law Scott Frillman.

He is survived by: his wife Sharen O'Leary; his sons, John O'Leary (Kim), Bob O'Leary (Rochelle), Scott O'Leary (Vicki) and Steve O'Leary (Michelle); his stepchildren, Chuck West (Crisauna), Carla Frillman, Cindy Johnson (Dave) and Colleen Nicholson (Steve); his grandchildren, Madalan Hoguet (Travis), Meagan Sanchez (Nick), Tylor O'Leary (Emily Schmidt), Paige O'Leary, Alynnah Stenger (Zach), Olivia Johnson (Robbie), Aiden O'Leary and Erin O'Leary; and his great grandchildren, Hadley, Emery, Sophia, Gabriella and Ainsley.

In lieu of all other gifts, memorials may be made to Big Brothers Big Sisters of Southwestern Illinois, 2900 Frank Scott Pkwy W, Suite 956, Belleville, IL 62223.