Hans P and Laura A Holthe

I've found lots of information on them from 1886 on, but do not know anything about them between Sept 1883, when they arrived in New York from the SS Island. In the Minneapolis, 1885 census, their 4 young children were listed with an Andrew and Mary Holt. By the 1886 Mpls directories, Hans is listed as living in Mpls. Thank you!