Measuring up

We're in Florida visiting the Driscoll family. Jim's grandparents have a door in their kitchen against which they have been measuring their grandchildren for years. Each one's height is documented at each visit from age 7 or 8 until they reached their peak in adulthood. I was added to the door two years ago, and tonight Catherine got her opportunity. Grandma Bets is no longer the shortest person on the door!!