Something Old at the start of Something New ...
I love this... four generations of wedding photos are displayed within this collage! Genealogy trees are infinitely interesting and a tree of wedding photos would be so fun for your family and guests to pour over at the reception!
Shoulder to shoulder, both sides of the family will be starting conversations, reminiscing perhaps and coming together in a wonderfully, natural way. And, as you're working a bit of nostalgia into your wedding, you'll also be honoring those loved ones that have gone before you!
How about asking your mom and MIL-to be to take charge of gathering and displaying your wedding family tree... What a beautiful keepsake!