Mary Catherine Williamson Obituary
It is with deep sorrow that we announce the death of Mary Catherine Williamson of Whitefish, Montana, who passed away on July 31, 2025, at the age of 86, leaving to mourn family and friends. Leave a sympathy message to the family in the guestbook on this memorial page of Mary Catherine Williamson to show support.
She was predeceased by: her father Michael J. A. Dugan; her sister Michelle McBride; her grandchildren, Kole Swartz and Ann Petersen; and her great grandchildren, Khloe Petersen and Levi Pimm.
She is survived by: her mother Mary McNulty Dugan; her husband Brad; her daughters, Windy Petersen (Craig) of Missoula, MT and Denise Davidson of Columbia Falls, MT; her grandchildren, Nicole, Jessica, Cody, Heather, Tonja, Tad (Dena), Derik, Jonah (Denise), Emma (Jennifer), Blake, Ian, Bruner and Nick (Kathleen); her aunt Megan McBride; and her uncle Sean McBride.
