Teresa (nee Onesti) Butler, age 69 of Oswego, IL, died Sunday, September 9, 2018 at her residence. She was born August 6, 1949 in Maywood, IL to the late Anthony and Mary nee Fauci Onesti. Teresa was a purchasing agent for Molex Co in Lisle for several years, a member of St. Anne Catholic Church and enjoyed being involved with the Southbury Villas Community, going out with friends and had a love for shopping. She was known as "Grandma B" to her grandsons' Robotics Team and enjoyed helping the team in any way. She also had a special love of St. Theresa, her namesake. She is survived by her daughter Deanna (Charles) Oberfranc of Oswego, IL and her son Thomas A. Butler of Streamwood, IL, grandsons Alex and Ryan Oberfranc both of Oswego, IL and one brother John (Barbara) Onesti of Hinsdale, IL. She was preceded in death by her parents, and her husband Thomas J. Butler. Visitation will be from 4:00 to 7:00 p.m. on Tuesday, September 11, 2018 at DUNN FAMILY FUNERAL HOME WITH CREMATORY, 1801 S. Douglas Rd., Oswego, IL. Mass of Christian Burial will be celebrated at 10:00 a.m., Wednesday, September 12, 2018 at St. Anne Catholic Church, 551 Boulder Hill Pass, Oswego, IL. Burial will be at Risen Lord Cemetery, Oswego, IL. In lieu of flowers Teresa asked that memorials be directed to Ronald McDonald House, ON150 Winfield Rd., Winfield, IL 60190. For additional information 630/554-3888 or www.dunnfamilyfuneralhome.com.