The Expanded Picklist is sorted on Person Name (last name, first name). It sorts in to 2 sections; both sequenced correctly. I believe the reason is that some surnames have a leading space even though I am very careful not to enter one when entering a surname. I have noticed, though, that this may be happening when I paste the surname from another electronic document or web site. And, no, I'm not pasting a leading space. Is there a way to prevent this or at least repair it globally.
Another curious thing about the Expanded Picklist is that the Person Name, Mother's Name, and Spouse's Name columns are last name, first name but the Father's Name is first name, last name. This isn't a big deal but if there is a quick fix, I'd like to have it.