In our family there are 3 Kate's. I've a daughter Katy, Mrs. T has a daughter Katie, and we have a granddaughter Kate. To keep them straight we tried several systems beginning with a numbering plan, oldest to youngest we called them 1, 2 then 3. That may have worked, but 3 vociferously defended the fact that she was not 3 she was 7, and so she has been ever since.
It's now 12 years on and still she is 7. I know that because yesterday was her birthday.
The photo is not very current but its special to me and the one I keep on my desk. I'm certain to hear about that later.
Until then Happy Birthday darling, keep smiling and have a wonderful day, everyday.