WHO IS SHE AGAIN?

A day or so after Allegra was born, I was outside with the boys while they played with the neighbors. One of the neighbors asked Tobin what his new little sister's name was. Tobin responded with some name I've never heard before. Then he came and asked me what her name was, in case he had gotten it wrong.

Then there were a couple of times in the first few days, where Tobin would sort of come up to Kristen or myself, pulling us somewhat aside, and asking:
"Who is she again?"