Immigration for Erik Erickson Bjerke

I am trying to find a passenger list which includes Erik Erickson Bjerke and his family. I have found sons Anders and Peter who both came over in 1873, in May and October. According to family history they then sent for the rest of the family in 1877, but I can find no listings for them. Anders and Peter came under the name Erickson, and sailed from Oslo, with their home listed as Gran. The remaining Bjerkes should be Erik, Berthe, Ole, Julius, Syver, Anne, Lauris, Edmond and Mathea. Any help would be greatly appreciated. Thank you Cyndy Moen