Halldór Guðjón Jónsson was born on January 13, 1873 in N. Múlasýsla. He died in Riverton on March 19, 1955. He took the name Austmann (Eastmann) in the west.
Spouse: April 27, 1897 Anna Sigríður Hálfdánardóttir b. March 28, 1876 in N. Þingeyjarsýsla, d. June 8, 1932.
Children: 1. Guðlaug Jónína b. December 20, 1897 in Roseau, Minnesota 2. Gunnsteinn Sullivan b. in the Fljóts Settlement on March 20, 1899 3. Hálfdán Ragnar b. April 4, 1900 4. Jón b. March 19, 1901 d. at birth. 5. Valdheiður Ólöf b. January 8, 1903 6. Jón Sigmundur b. March 19, 1904 7. Anna b. August 13, 1905 8. Jóhanna Sigrún b. November 27, 1906 9. Solveig Sumarrós b. April 23, 1908, d. September 19, 1908 10. Halldór b. November 1, 1909 11. Solveig Sumarrós b. April 13, 1914 12. Herbert Allan b. October 11, 1917.
Halldór emigrated to Winnipeg, Manitoba with his parents and siblings in 1883 and moved to Akra, N. Dakota. He moved north to New Iceland in 1896 got a job in the Fljóts Settlement. There he met and married Anna Sigríður, who lived there with her parents, Hálfdán Sigmundsson and Solveig Árnadóttir. Halldór and Anna moved south to Roseau, Minnesota in the spring of 1897, where Halldór’s parents lived. Their stay there was short because they returned to New Iceland a year later and settled in Riverton.