Close Advertising Crop circles Nafferton Hall Marlborough July 1993 Ken Brown’s daring 1993 attempt to show the evidence that Doug Bower and Dave Chorley started the crop circle phenomenon … Crop Circles Chad Deakin Circlevision Crop Circle Makers crop circles Doug Bower John Macnish Ken Brown Matthew Lawrence Michael Hesemann Montague Keen Nafferton Hall Marlborough Polly Carson 8770 views 0 / 0