Looking for help please with brick wall on my GG g

My GG grandmother came over from Norway [1900 Iowa census] about 1886. Her marriage record in Sioux City, Woodbury co., Iowa says parents are Erik Jorgensen and Dorthea Olsn. The starnge thing for me is her last name on marr record is listec as Asbill. But it was probably Asboll. I did an Ancestry dna kit not to long ago and found a connected ancestor to her by way of her grandparents. Basically showing her dad's brother as Ole Jorgensen Barboe. Now I am really confused with so many "last" names. For my GG gdandparents they were both married that one time in 1898 Sioux City. Then Ella died after her second child and so did the child. They are actually buried in the same cemetery as Ole Barboe's son Knudt [the posible uncles son] I am having a hard time trying to find them on any ship from Norway or a connection to Ellas's grandparents. Also having a hard time finding her family in any Iowa census. Not sure if they even came over with her? Now on Ellas husband side Valdum or the Americanized Waldum I have done much research and found the family. But on her side is my brick wall. Ella could be originally from Orkdahl or Sor Trondelag? If anyone can help I would be much appreciative! I have done a lot of work adding the family to findagrave as well [Waldum] Thank you in advace for your help