William Jan Berry (April 3, 1941 – March 26, 2004), was born in Los Angeles to Clara Lorentze Mustad (born September 2, 1919, Bergen, Norway – died July 9, 2009) and aeronautical engineer William L. Berry (born December 7, 1909, New York City – died December 19, 2004, Camarillo, California), He was raised in Bel Air, Los Angeles. Jan's father worked for Howard Hughes as a project manager of the "Spruce Goose" and flew on its only flight with Hughes.