A ceremony at The Cenotaph in Whitehall, London on 4 August 2004, marked the 90th anniversary of Britain's entry into the First World War. Allingham attended, together with three other First World War veterans, William Stone, Fred Lloyd and John Oborne. Allingham also marched past the Cenotaph on Remembrance Sunday in 2005 and laid wreaths at memorials in Saint-Omer on Armistice Day. That was the last time a First World War veteran marched past the Cenotaph and it marked the end of an era. No First World War veterans were present at the Cenotaph for the 2006 Remembrance Sunday Parade.