Here's the problem:

I have four "first name" fields that I want to appear in a specific format
based upon if the contents are null. I would like them to appear in the
following formats depending upon if the next field is not empty.

Child_First_1
or Child_First_1 & Child_First_2
or Child_First_1, Child_First_2 & Child_First_3
or Child_First_1, Child_First_2 , Child_First_3 & Child_First_4

I keep messing up the formatting of the IF statement. Any help would be
appreciated.