Swan Swansons death certificate at the Becker County Courthouse in Minnesota states that the name of his parents were Swan and Mary Viken from the country of Sweden. Swan Swanson was born in Sweden in 1838.He immigrated to Am erica around 1870,we do not know if his parents accompanied him. Does any one out there happen to know at what port Swan Swanson entered? Does anyone have any information on Swan and Mary Viken of Sweden?