Dear Mr. Gaber:
On one of the Amercian census they show that Andrew Martin Olson married Olga Marie Lyngstad on January 6, 1901 in Halstad, North Dakota, U.S.A.. The immigration date shows 1904 as per census.
As far as any information I have on Olai is an American census June 16, 1905 in Polk county, Brandsvold, Dakota, it lists his birth as 1879 mother and father Norwegian.
A Canadian census of 1916 shows Ola Olson, Age 35, single, immigration 1905 and birthdate 1881. I know the land that is listed was my grandfather's which is located in Delisle, Saskatchewan, Canada. He married my grandmother after 1916 and there is not Canadian census on line after that date.