Rosemary Duncan

Rosemary Duncan, 87, of Parker, CO passed away Saturday May 10, 2025.

She was born on September 29,1937 in Hays, KS, and raised by her loving mother, Anna Bieker, along with her five siblings. She was married to Ronald Duncan, the “love of her life”. He preceded her death on May 2, 2012. She was a homemaker, and loved to cook, and spend time with her kids and grandkids, and enjoyed traveling with her husband Ron.

She is survived by her two daughters, Joy Martinez and husband Steve, of Parker, CO; and Tammy Haley and husband Rod, of Augusta, KS; four grandchildren, Steven Martinez, Jessica Wilterding, David Duncan and Drew Hallaux; and one great grandchild, Natalie Wilterding. She is also survived by two sisters-in-law, Sharon Johnson and Deb Davis.

She was preceded in death by her mother Anna, her husband Ron, daughter Deanine, two brothers, Frank Bieker and infant Oliver Bieker; and four sisters, Agnes Gross, Leila Knotts, Carol Bieker and Anne Hirsh.

She will be cremated at Newcomer, and then her interment will be at Crown Hill Cemetery, Lakewood, CO. The immediate family will hold a private ceremony at a later date.

In lieu of Flowers, please consider donating to a Charity or Foundation, such as The American Cancer Society or The Parkinson Foundation.