Yes, Eilas, I thought they were married in St Kevin's Church - found a couple of photos of this beautiful little church and thought it was all settled.
But then I found the history of St Kevin's Church - see
http://wicklow.local.ie/content/16828.shtml (the same information appears on a number of other sites).
The foundation stone was laid in 1846 and was finished and dedicated in 1851."My" marriage took place around 1834 so it could not have been in this church. According to the history of St Kevin's Church, prior to its construction "the numerous Catholic population of the district have to travel some miles to receive the consolation of religion".
I'd like to know where "the numerous Catholic population" went to be consoled (and married).
Regards
Barbara