Berthe Paulsdatter and Erik Olsen

I am trying to find how these relatives traveled from Norway to the U.S. From the Church Book from Vang Parish, Furnæs Parish Out Migration April 1882. Erik Olsen (1832) Residence Tvedt Østre, Wife Berthe Paulsdatter (1851) children Marthe (1876) Ole (1878) And Gønne (1880). Erik sometimes went as Erik Olsen Tvedt.. They might have been traveling with Mikkel Poulsen (Paulsen) (Myhre)