Beatrice Mattern Obituary
It is with deep sorrow that we announce the death of Beatrice Mattern of Rugby, North Dakota, who passed away on February 23, 2026, at the age of 82, leaving to mourn family and friends. Leave a sympathy message to the family in the guestbook on this memorial page of Beatrice Mattern to show support.
She was predeceased by: her parents, Joseph Reiter and Eblena Reiter (Koble); her sister Alice; her brother-in-law Albert Leier; and her in-laws, Joe S. and Myrtle Mattern.
She is survived by: her husband Joe; her children, Kim Tofstad (Les), Rory Mattern (Jolene), Shelly Koisti (TJ), Darin Mattern (Gerene) and Troy Mattern (Jamie); her grandchildren, Ashley Ounchith (Vichita), Alicia Kaasa (Dustin), Derek Mattern (Laura), Jordan Mattern, Brayden Koisti, Treyton Mattern (Julia), Halle Mattern, Bryer Mattern, Lydia Mattern, Cooper Mattern, Jax Mattern and Ily Mattern; her great grandchildren, TreAllan, AviAnna Ounchith, Maci Kaasa, Giada and Livia Mattern; her brothers, Albert Reiter (Clara) and Allen Reiter (Carol); and her sister-in-law Joni Harmel (Doug). She is also survived by many nieces, nephews, relatives, and friends.
