This is how I would do it.I think it is the least confusing way.
1 Detach the child from the current parents. 2 Detach spouse the wrong Minnie from the husband. 3 Attach the correct Minnie as spouse 4 Attach the child to the correct parents.
With the exception of the marriage fact all facts and notes will not be affected.
You will have to examine your sources and notes for the marriage facts to make sure they are associated with the right Minnie.
All sources that contain the name Minnie will have to be reviewed to make sure they are linked to the right Minnie.This may require you to unlink a source from one Minnie and link it to the correct Minnie.If a source is linked to the wrong Minnie it is a 5 step process to relink it. Starting with the wrong Minnie Copy Source Citation Unlink Source Citation Go to the correct Minnie Add a Source Citation, Paste Link to Source Citation
You will have to do this for each source you want to relink.