John (Ola) Helgeson Brenna

Looking for info on John or "Ola" Brenna and Kari Brenna who settled in the Brenna township in Grand Forks County of North Dakota. Children were Henry, Mari, Nils, Oscar and Albert. Oscar had two daughters with his first marriage to Christine, Adella and V. Doris, the children of his second marriage to Bessie Mahlum Berg were Oscar Allen and Harold Dean and Patty Ann. They moved to Vancouver, Washington in the 1940's after the daughter was killed by a hit and run driver at age 3 when they lived in Grand Forks. LB Brenna