Hi Dara,
Yes, I have looked at Wicklow and suspect that there will be a link. The area my family is from is pretty close to the Wicklow border and some of my family are buried at Enniskerry [even though I know they did not live there].
As far as the variations on the name goes, I can see that in some cases the names seem to be interchangeable. I have records of my family which seem to have been spelt "Tracy" rather than "Tracey". Maybe poor record keeping?
Cheers,
Glenn.