olsen- olson

Hi, I am so new to this & I need HELP!!!!!! My great grandparents were Nils Martin Olson & Lydia Marie Eliassen[.Nils(b-2/5/1861) was from Elsfjord & Lydia(B-10/7/1861) from Hemnes.:)]I have only the children's names. My grandfather was Olaf Emil (b-9/11/1892. I was so excited to find this site.. I also have an OLD letter hand written in Norwegian, can you help me find a way to get it translated? Any and all help would be GREATLY appreciated, Thank you, Nettsey