No idea when Murph and Mick were born, they were both adults when I got them.
Riley is a Libra and according to an excerpt from a horoscope I found:
Four hours is the ideal length of time to know a Libra. They make good social directors, encyclopedia salesmen and airline hostesses. Around the house they're lazy and self-indulgent, and they like things peaceful and cozy and meals served on time. Confusion makes them sulk, and in a crisis they panic at once, knocking old ladies and small children down to leap into lifeboats. They are not very brave and collapse promptly under pressure.
Oscar Wilde was a Libra. So was Samuel Taylor Coleridge, the pioneer drug addict. Like Eleonora Duse and Jenny Lind, Libras enjoy the public eye; some of them are never offstage.
Sometimes they dabble in politics, like Rutherford B. Hayes and Lee Harvey Oswald. When not happy and elated, they lapse into silent gloom, waiting for someone to make them happy again. They worry a lot about whether people like them, but they don't really much like people, except perhaps the rich and famous. They prefer food.
I'm a Gemini (is it a double whammy to also be a twin?)
Gemini people not only can't do anything right, they think their ineptitude is cute. "Oh, silly me!" they exclaim. "I forgot all about it. Isn't that just like me? Oo, aren't I awful?" They read the last page of a novel first, and they can't concentrate on anything at all for more than five minutes. Totally unreliable, they are something of a nuisance around the house or office.
There are, of course, no famous Geminis except by accident or marriage. Queen Victoria, a very silly woman (did you ever read her diaries?), was a Gemini. Gemini is the sign of the Twins, which may explain why she referred to herself as "we." (Sometimes the Twins get carried away; the Dionne quintuplets were born under it, or them.) Remember Carlota, wife of Maximilian, the emperor of Mexico? The one who got so confused she had to be locked up for the last 60 years of her life? She was a Gemini. So was poor Jefferson Davis, president of some of the United States. That's about it for the Geminis.
Although deeply moved by greeting cards, china kittens and Lassie movies, Gemini people are rather heartless about people. They believe in ghosts, reincarnation, extrasensory perception and horoscopes.