The action is commemorated as the British Army's first of the war by a stone-built monument with a bronze plaque in Casteau. The monument names Thomas and Hornby and commemorates both the first shot and the preceding charge, but is commonly known as the "first shot memorial". The memorial stands some from the location of Thomas's shot but is close to the starting point for Hornby's charge. The commune of Mons, in which the memorial stands, stated that it was sited here for ease of maintenance, though the real reason may have been to provide a juxtaposition with a plaque marking the furthest advance by British Commonwealth forces in this sector in 1918. The plaque, which is mounted to the wall of a restaurant opposite the first shot memorial, marks the furthest advance by picquets of the Canadian 116th Infantry Battalion at the time of the 11 am, 11 November 1918 armistice.