Cathy Sue Heidenrich

Cathy Sue Heidenrich, 62, of Monmouth, IL, passed away on Wednesday, February 18, 2026 at her home.

Cathy was born on June 16, 1963 in Andalusia, IL, the daughter of Ronald Lee Swan and Marilyn Jean Van Hyning. Cathy graduated from Streator High School in 1984.

She married David Wayne Heidenrich on January 30, 1998, in Ottawa, IL, they later divorced.

Cathy worked for many years at Achievement Industries, Monmouth.

Surviving Cathy are her two brothers; Charles (Kathy) Troxel, and Ron Swan, both of Monmouth.

She was preceded in death by her parents.

Cremation has been accorded. Interment at Warren County Memorial Park will take place at a later date. Memorials may be given to Warren Achievement and sent to the funeral home. McGuire & Davies Funeral Home and Crematory, Monmouth, IL is in charge of the arrangements.