Dorothy Marcella Koepp, 86, of Sun Prairie passed away on Wednesday, October 8, 2026 at SSM St. Mary's Hospital in Madison.

Dorothy was born on November 13, 1939 in Portage to William and Cecelia (Smith) Grubba. She graduated from Portage High School. On July 15, 1961 Dorothy married Jerome Koepp and together they raised two children. The family moved to Sun Prairie in 1966. Dorothy worked for the State of Wisconsin for 22 years.

Dorothy enjoyed reading, crocheting, needlework, and especially spending time with family.

She is survived by her husband of 65 years, Jerry Koepp; children, Curtis Koepp; Andrae (David) Hasse; grandson, Chase Koepp; and sister, Beverly (Michael Manthe).

Dorothy is preceded in death by her parents, William and Cecelia Grubba.

At Dorothy’s request there will be no formal services.

Donations can be made in Dorothy’s name to Dane County Humane Society.

Cress Funeral & Cremation Service

1310 Emerald Terrace, Sun Prairie

(608) 837-9054