Miss Climpson never appears in the short stories, and the matter of how she and Peter met remains entirely obscure. (Unless someone else can remember something I've forgotten.)

I can't call her Kitty either. I have the same problem with Charles Parker. I prefer using Peter's Christian name, because "Wimsey" seems so distant and stiff, but I have a dreadful time calling Parker "Charles." I think maybe it's because the narrator, while using "Wimsey," "Lord Peter," "Peter," and "his lordship" interchangeably, never calls either Miss Climpson or Parker by their first names unadorned.

Harriet, on the other hand, is universally Harriet.