I am well aware of Christmas Meetings such as the 'Hogmany' (well not strictly Christmas) at Mallory Park and I rode in several myself in the 70s at Brands (we rode on a snowy track one year) .
On the Mortons archive site there are several pictures that include, Fred Neville, John Hartle and co taken in what is described as December 1960.
http://www.mortonsar...8375250?pcp=221
Can anyone shed light on these and the meeting that took place. Were there any other 'off season' meetings a the time?