Louisa! Being thinking about that lately, actually, and LouisaMay Alcott in particular (as a name). It just sounds so lovely, and the surname, too. But you have lots of nice names there, I admire your taste. Hmm, probably Alec.
Ooo, Iris and Joanna are my favorites of your girls. They are just so sophisticated, while still having a little sparkle. As for the boys, Peter and Alec stood out right away.