Ottó Jónsson was born in Vopnafjörður in N. Múlasýsla on October 2, 1886. He had the last name Hrappsted in the west.
Spouse: December 18, 1915 Ágústína Gísladóttir Bíldfell b. in the Lakes settlement (Vatnabyggð).
Children: 1. Margaret b. September 16, 1916 2. Valgerður b. June 10, 1921 3. Elín b. July 3, 1926 4. Clara b. February 23, 1931 5. Marian b. August 17, 1934.
Otto was the son of Jón Jóhannesson Hrappsted and Margrét Jónsdóttir. They came west in 1893, but Margrét did not make it to the end of the journey, dying of childbirth on the ship while crossing the Atlantic. Otto went with his father to Winnipeg, from there to the Argyle settlement and in 1899 to Swan Valley (Álftárdalur) near Swan River in 1899. Otto went with his brother Einar west to the Lakes settlement (Vatnabyggð) in Saskatchewan in 1910. He settled near Leslie. Ágústína was the daughter of Gísli Jónsson Bílfell and Valgerður Eiríksdóttir in Vatnabyggð.