Here is an interesting record for you from Alstahaug
Last Chapter left page. 7. Sunday in Trinity, August 1. 1813 link
Bapt. of "uægte" born out of wedloc Lars Christian. Parents Petter Christensen Omnøe and "Pigen" Maid Kiersten Hansdatter. Down to X "indforent til egteskab" (marriage agreement) between "enkemand" widower Petter Christensen Omnøen and "Pigen" Maid Kiersten Hansdatter.
They married in Alstahaug July 23. 1815 and settled down on farm Burøen on the island Vega before 1817.