My paternal grandmother passed away when my father was 2 years old and my grandfather remarried shortly after. I want to include my maternal grandmother and my grandfather and step-grandmother under my In Memorium section of my program. What is the correct way to word or list this? Everything I've come up with looks awkward. Is there a particular way to do this that is "correct"?
Re: How to list deceased grandparents who were widowed and remarried
I would just list each person separately and try to not address married/widowed couples. So instead of listing Jane & John Doe, grandparents of bride. You could put Jane Doe, Suzy Doe, John Doe, grandparents of bride. I don't think you need to get into the specifics of which woman was your step-grandmother or whether the person is a maternal or paternal grandparent.
Mr. and Mrs. Grandfatherfirst Grandfatherlast
Mrs. Grandmother
or
Jim and Sally Granddad
Katie Grandmum
You don't need an in memorium at all, especially if it is problematic, and you certainly do not need to list everyone's exact relationships to you.
It is your wedding. Your guests are there to celebrate, not to mourn.