I was coming here to say that Alexandria, at 4, is shorter than Erika, but I'm actually not sure by how much. I know she was 37" this summer when we went to Worlds of Fun (an amusement park out here), but I think she's definitely gained a few inches. The hardest part is getting her to stand still ... :)

And edited to add that Erika is absolutely beautiful. I love hearing the stuff she comes up with. :)