Group portrait time can be overwhelming. But having a plan and a list can help keep us all on point. And obviously not all families are the same. There will be more groupings in some cases than others. Some families have tricky family dynamics where certain family members don't get along. Informing the photographer of this ahead of time is best. This is just a tool to help you plan for who should be included in the formal portrait time. And if you can put the names of each family member on the appropriate line or have a "point person" who knows who everyone is, this can help things go quickly and smoothly.
Wedding Party:
Full bridal party (all bridesmaids and groomsmen)
Bride and bridesmaids only
Bide with each bridesmaid
Groom and groomsmen only
Groom with each groomsmen
Bride's side:
Bride + her parents
Bride + mom
Bride + dad
Bride + Groom + her parents
Bride + Groom + her parents + siblings
Bride + Groom + grandparents
Bride + Groom + any other groupings
Groom's side:
Groom + his parents
Groom + mom
Groom + dad
Bride + Groom + his parents
Bride + Groom + his parents + siblings
Bride + Groom + grandparents
Bride + Groom + any other groupings
Bride + Groom with both sets of parents
Bride + Groom with officiant