Beitland - Gullord

I am looking for information on Martin E. Gullord and his wife Elisabeth Beitland Gullord. Martin's parents were Even and Karen (Carrie) ? as we know they didn't use Gullord in Norway. Is there a farm name similar to Gullord? We think they were from the area of Frondhjin or a place called Biri. Elisabeth's birthdate if July 30, 1852 and Martin's is Nov. 4, 1847. We know that Martin had a sister Petra ? (Gladstad) and a brother Henry who married Elisabeth's sister, Christine. Is this area in Nord-Trøndelag area? Martin and family lived in Winnebago County, Iowa and some of the family later lived in or near Bricelyn, MN. We liked to know how many were in each family and when they emmigrated to America. Thank you for any help.....