It's very possible that Erland Berge's son was named Albin originally - it's a common Swedish and Norwegian name for a boy.

the 1895 census shows me he is born in Wisconsin in 1880.
I'm trying to find them on the census for that year, but with no luck.

Name: Alvin J Berge
Titles & Terms (original):
Residence: Pomme de Terre, Grant, Minnesota
Age: 15y
Estimated Birth Year: 1880
Place of Birth: Wisconsin
Race (original): W
Gender: Male
Line Number: 8
Family Number: 2
Page Number: 19
GSU Film Number: 000565774
Household Gender Age
E A Berge M 45y
Bertha Berge F 47y
Alvin J Berge M 15y
Julia M Osen F 18y
Emma E Osen F 17y