Hi, ladies: I have two cousins who have agreed to walk my elderly grandparents down the aisle at the ceremony and then into the reception when the grandparents are introduced. (Since the grandparents are on different sides of the family, I am not having them walk together.) What is the term for this role: are they ushers/ escorts/ helpers???!!! Since all the cousins have to do is take a grandparent to their respective seat, I figure the cousins don't have to come to the rehearsal, but I have to thank them for being involved. What's the best way to do that? Do I invite them to the rehearsal dinner as a thank you for agreeing to help? I feel funny about that because my MIL is hosting the dinner, though she says she'll invite whoever I want to be there. Is a personalized thank you card enough to thank them for this regardless of whether or not they attend the dinner? I am sure I am overthinking this, but I don't want to offend anyone. TIA