I also have a knut and Olava Syverson in our family tree
some of the same names but years dont match
hears some of what i found
Knut Syverson 1882-1957 born to parents ole and kjersti syverson was the youngest of 7 children.
married olava who was born in norway in 1888 came to minnesota with a daughter olava and knut were married in 1930. daughters name was corrine
there are buried at the west cemetery in Ulen Minnesota