Ole Hansen and Gunild Gurnold Gjerddalen, Torpa

I will be in Norway in July and am looking for relatives and a family farm: Ole Hansen Gjerddalen b.Nordre Land, Torpa, Oppland 8/25/1826 and Gunild Gurnold Flalegaord Gjerddalen b. 3/27/1829 (same). They were married 1853 in the Aamodt Kirke, Torpa. Great-great grandpa died in Norway but grandma emigrated to Wisconsin in 1877. Great grandpa and grandma: Ole Andreas Gardalen b. 1855 Torpa emmigrated 1873 and m. Martha Jackson. They moved to Dows (Popejoy) Iowa. I have the name of a family living in the farm house in 1977: Sigrid G. Gjerddalen, 2884 Torpa.