Halldór Sigurðsson was born in Skagafjarðarsýsla on July 14, 1874. He took the name Halldór Ásgrímsson in the west.
Spouse: Þórunn Jónsdóttir b. September 26, 1875 in S. Múlasýsla. She took the last name Austmann in the west.
Children: 1. Blanche Engilráð b. December 25, 1896 2. Norm Halldór b. August 5, 1898 3. Ruby Dóra b. December 3, 1901 4. Alfreð b. November 22, 1902
Halldór was the son of Sigurður Stefánsson and Guðbjörg Pétursdóttir in Skagafjörður. He was adopted by his father’s sister, Engilráð Stefánsdóttir, and her husband Hallur Ásgrímsson. They came west in 1883 and brought Halldór with them. When he came west, he took his stepfather’s last name. They settled near Mountain, N. Dakota. Halldór and Þórunn were in Minnesota before the turn of the century, but then moved to Cavalier County in N. Dakota.