The Finns in America by Taru Spiegel is an excellent presentation with a bibliography giving the chronology of Finnish Immigration.
In Valley Township, Section1, there is a Finnish cemetery affiliated with the Finnish Lutheran Synod. The cemetery is small. All of the marked graves are listed below. But know that there are several sunken graves that are unmarked.
Youley, Esther Katarina
8-25-1932--2-26-1933
Youley, Frank Donald
10-25-1903--11-19-1923
Koivo, Arthur Edward
1917-1922
Youley, Leeroy Oscar Wm.
1902-1923
Ivari, Koivu Everett
1919-1921
Krapu, Ernest & Sanford
babies--1907--
Krapu, Lillis
Mar. 23, 1908--May 25, 1923
Krapu, Aili H.
1883-1964
Krapu, John E.
1883-1953
Krapu, Knut
1872-1946
Krapu, Anna M.
1876-1945
Krapu, Mamie M.
1917-1932
Thank you to Alison Ligman for contributing this information from Cemeteries of North Dakota; North Half of Dickey County, Vol. 18
compiled by the Red River Genealogical Society, pub. 1987.