Guttorm translation help

Hi Could you please translate the following for me: Guttorm Taraldsen 1691, mulig i Onsoy og kan vaere en bror av Siri Taraldstr., g.m. Soren Paulsen, ostre Lundeby, ble trolig bruker av denne gardart i 1750 etter Rasmus Ericksen. G.i Onsoy m. Astri Hansdtr. Does it mean Guttorm is brother of Siri and she married Soren Paulsen from Lundeby. Did Guttorm marry Astri Hansdtr?. I am trying to teach myself, but this one abit hard. Thanks