USGenWeb site includes information on the various areas settled by Minnesota Icelanders including maps, land patents, census records, and local information.
Minnesota Settlement story written by Guðni Júlíus Oleson for “Saga Íslendingar í Vesturheimi” (History of Icelanders in the West), Vol. V. Edited by Tryggvi J. Oleson, Dr. Phil. Publ. in Reykjavík, 1953 by Bókaútgáfa Menningarsjóðs. English translation by Cathy Ann Josephson, Vopnafjörður, 2003
Lyon County, Minnesota on the MNGenWeb
Roseau County, Minnesota on the MNGenWeb
Vestur-Íslenzkar Æviskrár by Benjamín Kristjánsson and Jónas Thordarson, published in 6 volumes by Bókaforlag O. Björnssonar and Bókaútgáfan Skjaldborg in the years 1961-1992. This is a collection of family histories of Icelandic immigrants to North America in Icelandic. Many are drawn from obituaries in Icelandic newspapers. Some entries are about residents of Minnesota. With the help of an Icelandic-English dictionary, the reader can usually determine the year of immigration, ancestors, siblings, and children of the people recorded in the book.
Federal Land Records Site on the Bureau of Land Management Department website for Land patents, survey plats, field notes, and more.