2) Marriage record for a Johan Andersen - https://www.digitalarkivet.no/kb20050613041005 #14 on left - out of sequence it seems but looks like # 14 - Would appreciate the full translation of this record - people places dates and descriptions from each column - as this looks like it may be a second marriage for the same Johan in 1). Johan's first marriage : https://www.digitalarkivet.no/kb20070911660324 #2 on right in 1853.
Thanks for looking - Link #1 did not work for me either from the post; Father seemed the same on 2 - Anders Andersen #3 went to Johan as described not sure what may have happened for you.
Definitely challenging to feel certain. I am seeing the birth father as Anders Andersen rather than Iversen, the writing does not eliminate the possibility - I see the mother as Mali Christofersd - and here is a marriage record that seems to strengthen that view : https://www.digitalarkivet.no/kb20070911670269 11 on right. I will look for other cross checks. In the meantime, any help with other names on the birth record would be appreciated.
The birth date of the Johan 29 Jun 1828 don't appear to be the one you are looking for, however there is a Johan born to Anders Andersen And Mali Christopher Baptized on 20 July 1828 (https://www.digitalarkivet.no/en/view/255/pd00000040340232)