You'll get a lot of "I'm a Clare" on this (oh, I see you have) which should tell you something...
It's my middle name btw.
I have about 25 people on my phone (sad bastard). Four of them are called Clare.
If someone rings me up and says "It's Clare" there are at least seven people it could reasonably be (so I have to busk for a bit while they tell me enough info to work out which it is!
).
DD and DS2 both had a Clare teaching them in yr 2 and then yr 3. Not the same Clares either!
What I am saying is that it was very very popular 35-45 yrs ago. Does this bother you?How can I know. But it's a bit like calling yr DD Karen or Julie; or yr DS Dave, Steve, Mark, Paul or Martin.