Update 17th August 2011
The story has been presented that there was nobody there other than Mr Templeton and his daughter (other than two old ladies in a car by the main road). This is not true. Other photographs from the same film show a woman with the girl and Mr Templeton has stated that he was there with his wife and two daughters. This increases the possibility that there was somebody else present who could have got into the photograph. You can see the photograph on this very informative web page.