researching Austin Sanderson in Bukka Tin Norway

Hi I am looking for info on the following family Austin Sanderson born 14 Aug 1836 son of Helge Sanderson born Abt. Mar 1794 and Adalaide Knutson Abt. Nov 1793. They immigrated to the USA between 1843 and 1848 Austin had the following siblings all born in Norway, 1.) Sander Hilyeson Sanderson born 1825 2.) Lavina Sanderson born 13 Jan 1827 3.) Knute Sanderson 1born 5 Oct 1829 4.) Margaret Sanderson Born 18 Sep 1833 5.) Helen Sanderson born May 1839