Kathleen Ann Koller, 64, of Duluth, died Saturday, September 4, 2021 at her home. She was born in Virginia, MN January 10, 1957 to Harlan and Adeline (Kopponen) Carlson. Kathleen was a graduate of Cotton High School. She was a very loving person and a dedicated mom and grandma. She loved summer days, gardening, and her coffee. Although she was small in stature, she was known for having the biggest heart. She will be dearly missed by many. Kathleen was preceded in death by her parents and her brother Steven Carlson. She is survived by her four children: Aaron (Sarah) Dass of Maple Grove, Elisha Koller (Mark) of Duluth, Jillian Koller of Minneapolis and Brittany (RJ) Koller of Duluth; six grandchildren: Gabrial, Elana, Logan, Jaxson, Izabella and Elliot; three siblings: Jan, John and Mike; nieces, nephews, and many other family members she held close to her heart. A private family gathering will be held at a later date. Arrangements by Dougherty Funeral Home, Duluth, 218-727-3555.