Dan Aykroyd and his father Peter, sit outside the family farmhouse in Sydenham Ontario, Wednesday September 2, 2009.. Dan Aykroyd's father, Peter Aykroyd, has written a new book, "A History of Ghosts." It's a true family story about seances on the family farm and the story that inspired his son Dan Aykroyd to make the mega hit Ghostbusters. in Sydenham Ontario,Wednesday September 2, 2009.The Canadian Press/Fred Chartrand