John Henry Leslie (1858–1943)
18 June 1915: the centenary of the Battle of Waterloo: how it was observed by the Royal Regiment of Artillery
Woolwich: printed at the Royal Artillery Institution Printing House, 1916
1916.11.159, front cover

Even in the middle of a far greater and far more bloody conflict, the Royal Artillery found time to commemorate the anniversary of Waterloo in proper style. They were not the only regiment or corps to mark events on 18 June, one hundred years earlier.