Fascinating, thank you very much for your reply. I'm now sure the individual you refer to as Tollef Obie is my great grandfather. I have a portrait-sized photo (@10" X 13") handed down to me of this family, shot in front of their Union, North Dakota homestead in the fall of 1899. The only two missing are my grandfather, Joseph Obie (born 1900) and Melvin born 1907.
I've been told by my father, who visited there in the 1990's that their homestead has been preserved as an historical site, as being representative of the "Pioneer Homestead."