Rennemo Surname

Hello, I am searching for my Great Grand Fathers family. His name was 3 different ways: Hendrik/Henrik/Henry Minnesota Naturalization Records Index, 1854-1957 Name: HENRIK GUNERIUS RENNEMO Death Date: 05/29/1940 00:00:00 Death Place: BELTRAMI State File Number: 000834 Born 1861 or 1860 approx. Norway. Name: Henry G Rennemo Age: 69 Estimated birth year: 1860 Birthplace: Norway Relation to Head-of-house: Head Race: White Home in 1930: Shotley, Beltrami, Minnesota He was married to a Ingeborg Marta Rones from Beitstad Norway. I am running into trouble finding out when he came to america and on what ship, as that is all the info I have on him. They had 4 children, all born in America, one died really young. And a boy and girl, Gilbert 1913-1920 & Helga 1915-1920 of Scarlet fever or rheumatic fever. The only other child to survive was my Grandfather: Ingvar Olaf Rennemo born; 1908-1983 he was born in Guthrie, Minnesota. Lived in shotley MN. If anyone has ran across Hendrik Rennemo in your searchings could you please let me know? Seems like I hit a dead end for now! Thanks