i wasn't jumping on the OP...
he asked if claire was a man or woman... i simply responded to his question.
doesn't matter if there was one guy named claire... it's still a woman's name.
just like you don't meet any "frank's" that are women... it's a man's name.
i know two Bev's that are men...still, 9/10 times it's a woman's name.
UNLESS you are asian and have "taken" an english name...then, there are no rules...
i've met a female garfield" & a male "penny".... i've also met "purple", "jenitor", "manson", "zeus", "isis", "venus" and a plethora of other names that you can never tell which one is which...