Somerset Maugham is my favorite author and I've always wondered how to work his name into a combo. I think I like it better as a mn though, but with a fn in the general vein of the mns you listed. Something really sweet to balance Somerset:
Emma Somerset
Evelyn Somerset
Eliza Somerset (ah, E names work well here, apparently)
Julia Somerset
The one that I can't get out of my head now, though, is
Blythe Somerset. She sounds like someone I'd like to know, someone Maugham would write about. :)