Mikkel Mortensen / Anne Johnsdatter

I am new to this forum and wish to ask for help in finding some details regarding my great grandparents. I am specifically trying to find out where they are buried. The information I have is through the Oystad Church records in Asdal, Norway. Mikkel Kristian (Christian) Mortensen – Born: July 19, 1837 Anne Johnsdatter – Born: February 28, 1847 They were married (2nd marriage for him) on November 13, 1874 Thank you for any help you can provide.