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If you still are looking. I used Michael Jones. He has a gorgeous voice! He is located in Washington Twp NJ, but should be able to perform at a wedding in PA.
Here is an article on him. clicky. I don't have any contact info for him as my wedding was 3 years ago. He is a parishioner at Holy Family in Sewell, so you could get contact info from there I'm sure.
Your church should also be able to provide you with a list of cantors.