Dates of death for Great-Grandparents

I continue to search for the dates of death for my Great-Grandparents without success. Perhaps someone is able to help? My last clue about them is the 1910 Folketelling for Arendal, residence then was Langsae Kreds 14. Their names are Hans Hansen Hjelseth, born 22.12.1841 in Molde, and his wife Ellemine Kristine Hjelseth, born 11.09.1860 in Sogne. A daughter was christened in the Barbu church. I appreciate any assistance with parish records. Thank you.