Dr. Green
Dr. Brown
Dr. White
Dr. Black
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Can they be used all?
What about other colors? Can other colors be used as a family name such as Yellow and Pink...etc.?
2 answers
Pink is a surname/family name, although not as common as Brown (which is my surname name, by the way). I've not heard of "yellow" as a surname, but it's possible, I suppose. Other colors are not commonly used as surnames that I know of, but all things are possible!
Brown, White, Green (or Greene), and Black are common English surnames. I should have made that clear above. Other colors such as yellow, red, purple, lilac, etc., are not.