She was born on October 29, 1938, in Normal, daughter of George F. and Hazel A. Williamson Condon. She married Ronald D. Grizzle on April 13, 1963 in Bloomington.
Surviving are her husband, Ronald of Normal; one son, David (Teresa Gibson) Grizzle of Downs; one daughter, Christine (Dan) Horner of Minier and three grandchildren, Jacob, Lauren and Sam Horner.
She was preceded in death by her parents and one brother, Loren Condon.
Bonnie worked 11 years at Peoples Bank of Bloomington and 25 years at State Farm Insurance Company, Bloomington.
She enjoyed bowling and was a member of the Bloomington Women's Bowling Association and was inducted into the Bowling Hall of Fame. Together with her husband, Bonnie loved to travel and they belonged to the Twin City Cruisers, showing off her '77 Corvette.
Bonnie was also a member of Second Presbyterian Church, Bloomington.
A graveside service will be held at 10:00 am on Friday, October 9, 2026 at East Lawn Memorial Gardens, Bloomington. A visitation will be held from 4:00 to 6:00 pm on Thursday, October 8, 2026 at East Lawn Funeral Home, Bloomington. Cremation rites have been accorded.
In lieu of flowers, memorials may be made to the Humane Society of Central Illinois.
To share condolences with the family or view her online tribute, please visit EastLawnMemorial.com