When I see you walk the streets of New York, it makes me cry. You look like you fit right in and that you are your own, independent person. It's as if you were never a baby who fell asleep in my arms. You look like you just showed up one day, fully-formed. It's amazing and incomprehensible.

Dear Amelia, Recently, you took your first step in becoming independent... you learned to walk. I still make you hold my hand so you don't run away, but you don't really need my help. This is the first of many milestones you will meet but to me, it is the happiest and saddest.

In the years since it was first started, Shaun Usher's blog Letters of Note has brought fans more than 750 missives from famous figures past and prese...