William fitz Duncan died in 1147.
William Fitz Osbert died in 1196.
William Dow Duncan died in 1961.
William Duncan - missionary - died in 1918.
William Duncan - philosopher - died in 1760.
William Augustine Duncan died in 1885.
William Wallace Duncan died in 1908.
William Duncan Herridge died in 1961.
William Duncan Strong died in 1962.
William Duncan MacMillan died in 1948.
William Henry Duncan died in 1863.
William Addison Duncan died in 1884.
William C. Duncan died on 1877-12-19.