Hans Jorgen Hillstad

Seeking information about Hans Jorgen Hillstad and his wife, whose name is said to be Helene. They had a son named Edward Hillstad, born October 1858 in Norway. Sometime between 1858 and 1867 they emigrated to the United States and settled first in Minnesota, where my ancestor was born, Louise Marie Hillstad. I have very little information about this family and have not had any luck locating them in the 1865 census, so do not know what part of Norway they are from. Any help would be appreciated. Thanks!