Ósk Hallgrímsdóttir was born on November 8, 1860 in Skagafjarðarsýsla. She died on July 21, 1934 in Hallson, N. Dakota.
Spouse: June 3, 1889 in Mountain, ND: Tryggvi Pálsson b. in S. Þingeyjarsýsla in 1863.
Children: 1. Jóhann Ingimar b. August 19, 1889 2. Egill Óli b. September 14, 1892, d. after a few weeks 3. Pálína Hólmfríður b. January 19, 1892, d. May 6, 1901 4. Ólína Herdís b. November 10, 1894 5. Ágúst Rósant b. October 6, 1896 6. Alfreð Eiríkur b. July 3, 1900 7. Pálína Hólmfríður Anna b. April 18, 1902 8. Hallgrímur Guðberg b. April 27, 1904, d. May 13, 1913. Ósk had a son with her first husband: Ingimundur Björnsson b. 1887 in Iceland.
Ósk and her son came to Pembina County in N. Dakota in 1888 where her parents, Hallgrímur Hallgrímsson and Guðbjörg Jónsdóttir, lived. Tryggvi came west to Winnipeg, Manitoba with his brother, Valdimar, in 1878. He settled in Pembina County in N. Dakota and married there. They lived in N. Dakota the rest of their lives.