Reviving Search for Betsy Johnson

Some of you put in a considerable amount of time helping in my search for Betsy Johnson (b. 28 Feb 1850 in Bergen, we think) in late 2013. (I can't believe it's been that long ago!) I would like to pursue a particular angle, but I'm not sure how to go about it. Brief Summary: G. L. [George Leonard] Johnson attended Betsy's funeral in Iowa. I suspect he is a relative. He is the son of Johan Bendik Johnson and Martha Olsdatter Wenos. Johan Bendik Johnson (Buran/Buranval/Buranvold/Buranvald) was born 17 Nov 1850 at a farm near Levanger. This is the same year Betsy was born. We have ruled out Betsy being a sister, but I am wondering if they could be cousins. That means I need to identify and look at Johan’s grandparents. Johan Bendik’s parents are John Olsen (Buranval) and Randi Jacobsdatter. How can I find John’s parents and all of their children? Unfortunately, I haven’t mastered searching in the archives. I seem to not get very far before I land on a page in Norwegian. When I click the English option, it takes me to a new starting page. I have uncovered one bit of new information found in a letter written by my grandmother about the family history. She writes about Betsy, “[her] parents were married in Norway and two children were born to them in Norway – one son and a daughter, Betsy.” Thank you for any help with navigating the archives. Nancy