Sigurd Jonny Hansen was born the oldest of three sons (Sigurd, Norman, and Edgar) of Sverre Hansen in Seattle, descended from a long lineage of Norwegian-ancestry fishermen. His father and grandfather pioneered opilio crab fishing in Alaska as a way of giving crab boats a chance to earn money year-round rather than in short-term or late-year seasons. He began fishing at age 14, working on his family's boat. After he graduated from high school, he began fishing year-round, spending on average 10 months per year in Alaska and the Bering Sea. Occasionally he also fished mackerel and cod in Norway during the summer. In his early years, he cut school so that he could go fishing.[2]