Berg, John Olaf & Larson, Hilder Christine Family of ?

[Heidi Loukides]

Searching for Swedish birth records, Imm., census, death records for family of John Olaf Berg b.3-4-1889 (Stockholm?). Imm. 1908-/+ Kanabec County, Minnesota, d.6-15-1940 Father Olaf Salmonson b.Sweden.
 
Also John's wife Hilder Christine Larson b.2-21-1886 (Stockholm). Imm.1903-/+ lived in Kanabec County, Minnesota,d.9-27-1939 Duluth, Minnesota.  
Father _ Larson, Mother Greta _. John & Hilder had 6x children including my father Fritchof Olaf Berg.  
Note last name is Oberg on all their birth cert. & maybe on other records.  
Linnnea Juliana b.1909, Viola Gerda b.1912, Russell Ranghar M. b.1915, Tense elvera Valborg b.1919 Fritchof Olaf b.1921.
 
Any assistance or direction(link) will be greatly appriciated.

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