"Well nigh the whole town, high and low, rich and poor assembled together. Nor was there a word to be heard, or a smile seen, from one end of the congregation to the other. It was just the same the following three evenings." Wesley's Journal, 13th September, 1760.
"At eight I chose a large ground, the sloping side of a meadow, where the congregation stood row above row, so that all might see as well as hear. It was a beautiful sight. Everyone seemed to take to himself what was spoken. I believe every backslider in the town was there. And surely God was there, 'to heal their backslidings'". Wesley's Journal, 14th September 1760.
I do not know where the meeting was.