gmitch wrote:So, where is it done in MLS?
I have a child that is listed under both parents in the "family" tab, but has no member number and does not show under "household"
That means that the child does not have a 'Child of Record' membership record in your ward.
Since there is no membership number listed that probably means that there is no record for the child. But if the family moved into the ward after the child was born then you should probably try requesting the child's record in LCR just to make sure it didn't get created but is not linked to his or her parents. If you do find their record you'll want to remove the child's entry on their parents record and re-add the child using the membership number found.
However, assuming you don't find their record you'll need to select Membership > Ordinances > Child of Record in MLS to create a record for the child. This will automatically add them to the household. You may have to delete the old entry on the parents' record afterward if he or she shows up twice under Family. You do that by finding each parent's record in MLS, selecting the Children tab and then clicking the Remove link by the entry without an MRN.