Dear Miss Clara Barton: Our classes in The History of the United States are studying about you, and we want to know more.Our teacher says she has seen you. That you live in, or near Washington, District of Columbia, and that, although very busy, she thought you might be willing to receive a short letter from us, and I write to ask you to be so kind as to tell us what you did when you were a little girl like us. All of us want to know. I am almost...