Sigurður Jónsson was born in Strandasýsla in 1864. He took the last name Johnson in the west.
Spouse: 1) Grafton, N. Dakota 1887 Björg Vigfúsdóttir b. in N. Múlasýsla in 1861, d. in Mountain in 1894. 2) 1896 Margrét Þorfinnsdóttir b. 1865 in Skagafjarðarsýsla.
Children: With Björg: 1. Jón Vigfús b. March 9, 1889 2. Hallbjörg Hólmfríður b. December 23, 1892 3. Björgvin b. January 15, 1894. With Margrét: 1. Árni b. January 1, 1897 2. Petrína b. February 10, 1899 3. Elís Þorfinnur b. March 27, 1901 4. Pálína (Pauline) Herdís b. February 10, 1904 5. Laufey b. February 27, 1906.
Sigurður emigrated west to Manitoba in 1876 with his parents, Jón Sigurðsson and Hallbera Hjaltadóttir. They settled in N. Dakota in 1880. Björg came west to Winnipeg, Manitoba in 1886 while Margrét arrived in 1893.