I know of a
Melissa Dorothy (and her twin,
Phoebe Edna).
Dorothy is by far my favourite of the four, and even cheers up
Melissa!
Dorothy Jane is lovely and very useable.
There's an actress here in South
Africa called Dorothy-Anne; she goes by both, professionally at least. And some people here combine
Dorothy and
Anne (or
Dorothea and
Anna if they're Afrikaans) to make Dorianne. Just a thought!