when Pere David first saw the deer in 1864, that population had been isolated within the walls of the hunting preserve for about 700 years (and they were largely extinct everywhere else). In 1895 floods broke down part of the walls and most of the deer were killed by peasants for food. Fewer than thirty deer survived, and these were killed in 1900 during the Boxer Rebellion.
That is the information I was after....is it taken from Philip Street's book?