Find it hard to believe that Thompson would make up the quotes from the WH knowing he would be caught. That said, I don't think the name was Wilkinson and would bet that the quotes were planted with Thompson knowing he would run with it and the other press would pick up on it.
That is a possibility. In that case whoever dropped the comments on Thompson knew he was a patsy and would run with it. Either way, Doug Thompson is not believable or trustworthy.