I am writing a book about the Boothby affair in 1964. I was interested to read in the Leslie Holt entry that Boothby and Holt first met at a boxing match. I was wondering what the source for this information was? Also, do you know of anyone who knew Holt personally or encountered Boothby around this time, as I would love to speak to them? My email is firstname.lastname@example.org, if that is an easier way to communicate.