Traditionally, it falls to the first grandchild to name the grandparents. Tom, the first grandchild of his mother's parents, named his grandparents Gamy and Gampa. Our Margaret is the first grandchild of Tom's mother, who wanted to be called Nana. When little Margaret said it, it came out ‘Nina.' The whole family calls her Nina now, and that's where Hazel's middle name comes from.