Johan ( John ) Hansen Hagen

I am looking for Johan ( John )Hansen Hagen born 7-6-1883 Flaa in Hallingdal Norway. He emigrated 1899 together with his brother Edward Hagen born 1881 Flaa and their mother Margit Hagen born 1841 Nes Hallingdal. Found them on 1900 sensus living in Eau Claire Wi with John`s brother Knute Hagen. John is according to " the Flaa-book " later merried to Annie Johnson and they had 6 children. I have not been able to find them on later census. If anyone can help it would make me [:)]. gera