Mr Karl Siegwart Andreas Olsen, 42 (?50), was born on 28 January 1870 in Trondheim, Norway. After moving to the United States in 1894 he changed his name to Charles.
After his wife's death in 1906, he took his young son Artur Karl Olsen back to Trondheim, Norway to live with the boy's grandmother. He remarried to Ester (a native of Sweden) and the couple lived at 987 Hart St. Brooklyn, New York. When Artur's grandmother died Karl returned to Norway to bring his son back to America. The two were returning to New York and were accompanied by their friend Fridtjof Madsen.
They boarded the Titanic at Southampton as third class passengers.
After the collision Karl Siegwart carried his almost sleeping son to lifeboat 13 and said to him that he should be a good boy, and that he would soon come back to him. The last Artur saw of his father was when he was standing looking on while the boat was lowered. Karl's body was never found.