Kay Siudzinski, age 53, resident of Kewaunee, passed away peacefully Sunday evening, April 5, 2026 at River's Bend Health Services of Manitowoc, after a lengthy battle with cancer.

Kay was born in Two Rivers on October 23, 1972 to Raymond and Doris (Loritz) Siudzinski. She graduated with the class of 1990 from Washington High School, then furthered her education at Silver Lake College where she earned her degree in education in 1996. Kay taught 3rd grade at Kewaunee Public Schools for 23 years, retiring in 2021 due to health issues.

She is survived by her two sisters & a brother-in-law: Kim Siudzinski of Two Rivers, Kelly (Tim) Spiering of Manitowoc; and two nephews: William (Whitlee) Spiering and Riley (Jennifer) Spiering. She is further survived by her aunt & uncle, Robert (Patricia) Loritz of Manitowoc; several cousins, other relatives and friends. Kay was preceded in death by her parents, Raymond and Doris Siudzinski; and her grandparents: Leon and Anna Siudzinski, Edwin and Rose Loritz.

A funeral service will be held at 6:00 p.m. Friday, April 10, 2026 at the Deja & Martin Funeral Chapel, 1506 18th Street, Two Rivers. Rev. Dave Pleier will preside at the service, with burial to take place on Monday at Holy Cross Cemetery, Two Rivers.

The family will greet relatives and friends at Deja & Martin Funeral Chapels, Friday evening from 4:30 until 6:00 p.m.

Online condolence messages may be shared at DejaMartin.com.

Memorial donations may be made for cancer research to the American Cancer Society - https://American Cancer Society; or the Carbone Cancer Center - https://cancer.wisc.edu.

Special thanks to the staff at the Vince Lombardi Cancer Clinic; the Radiation Oncology Department and Palliative Care Clinic at Aurora BayCare in Green Bay; and the nursing staff of River's Bend Health Services for all the compassionate care and kindness extended to Kay.