Mary Jean O'Brien
September 30, 1930 - June 7, 2026
Mary Jean O'Brien, age 95, passed away on June 7, 2026. A full obituary will be posted soon. Visitation will be 9 - 10 a.m. on Monday, June 15, 2026 at Prince of Peace Catholic Church in Lake Villa, IL. Mass will begin at church at 10 a.m.... View Obituary & Service Information
