Jóhann Tómasson was born on October 25, 1869 in Eyjafjarðarsýsla. He died in the Garðar Settlement on February 11, 1949.
Spouse: 1893 Pálína Þorleifsdóttir b. in Eyjafjarðarsýsla on September 24, 1869, d. in N. Dakota on January 18, 1939.
Children: 1. Tómas (Thomas) b. April 3, 1894 2. Þorleifur b. September 16, 1895 3. Árni b. March 14, 1897, d. May 18, 1934 4. Þórdís b. December 16, 1900 5. Gamaliel d. in birth in 1903 6. Guðrún b. July 2, 1905 7. Gamalíel b. July 8, 1908 8. Lárus b. June 26, 1909 9. Steindór b. January 8, 1912. They also had a foster son, Richard Earnest b. July 7, 1916.
Jóhann came west to N. Dakota in 1888 with his parents, Tómas Jóhannsson and Guðrún Árnadóttir. Pálína was living with the family there, likely engaged to Jóhann. They lived there the rest of their lives.