In 1914 Club member (and ex Chairman and Editor) wrote the following. If copies are still avaiable it is an excellent read
Late August 1939
Following the Olympics in Berlin three years earlier, the ISDT was seen by Hitler as being another opportunity for Nazi dominance - and the event was unexpectedly held in occupied Austria. Half way through, riding across the mountains surrounding Salzburg they received telegrams from the British Embassy telling them to get out and go home immediately.
World War II started just a week later!
The story of how all the British competitors and spectators successfully made it away through Switzerland with the help of their German escorts.
Seventy five years later, one of the competitors tells his grandson all about his adventures...
Costing £12, the book will be available at the Launch, or then from the Museum Shop or online via http://www.thenmmshop.co.uk