Jón Einarsson was born in W. Skaftafellssýsla in 1854. He took the last name Mýrdal in the west.
Spouse: Sigríður Þorsteinsdóttir b. July 7, 1859 in W. Skaftafellssýsla.
Children: 1. Marta b. November 15, 1881 2. Sigríður b. 1884, d. after a few weeks 3. Þorsteinn Sigurður b. October 10, 1886 4. Jónína b. 1888 d. as a one-year old 5. Ragnhildur b. October 10, 1889 6. Einar b. July 13, 1891 7. Þorbjörg b. 1892, d. after a few weeks 8. Björn b. July 30, 1893 9. Kristbjörg b. September 6, 1894 10. Magnús Hermann b. December 22, 1896 11. Pauline b. February 7, 1898, d. January 22, 1936 12. Marie b. May 17, 1899 13. Friðrik b. June 3, 1901, d. November 5, 1903 14. Esther b. December 9, 1902 15. Friðrik (Frederick) b. August 6, 1906.
They emigrated west to Winnipeg, Manitoba in 1884 and moved on to the Garðar Settlement in N. Dakota.