Occasionally you may accidentally enter the sex of a husband and wife backwards, or the given names were ambiguous which made entering the sex erratic. If you try to edit these people, you will find that you are not able to change their sex field unless you unlink them first.
To switch the positions of a husband and wife:
1.Select either the husband or wife in the People page
2.Click the Edit button on the person view (pencil) and select Swap father and mother from the menu.
3.Click Yes to confirm that you really want to do this, or cancel to abandon the change.