Notes: Some confusion regarding his actual first name. Several different spellings in the service record.
“The last of Canada’s First World War dead was 40-year-old Nassau Briggs, a labourer during peacetime who served as a sergeant with the Canadian Infantry’s 18th Battalion and is buried in Hamilton, Ont. Briggs’s death, on Aug. 31, 1921 of complications resulting from having been gassed, came almost three years after Armistice Day 1918, but as it coincided with the ratification of the peace treaty between Britain and Hungary — the last between Britain and its wartime antagonists — it is considered by the Commonwealth War Graves Commission to be the last death of a Canadian during the Great War. Nov. 11, 1918, in essence, was a truce, a temporary suspension of hostilities. The war didn’t end until its combatants agreed it was over and signed on the dotted line.”
Source: Grave matters article.