Hultgren Pearson Persson of Sweden

I am researching my dad's foster parents Albert Teodore Pearson/Persson and Linnea Hultgren both from Sweden. Albert was born 15 March 1897 in Sweden and died 5 April 1973 in Holiday, Florida. He had two brother still in Sweden Axel and August. He also had one sister in Harvey, Illinois Minnie who married a Fransen. Linnea Hultgren was born 4 December 1911 in Vaxjo, Kronberg, Sweden she died 3 September 1982. After Albert died she married Albin Anderson. I would like any information on these two people. I would like to get in touch with living relatives of Albert and Linnea.