Claim: John Alexander Tilleard was a British solicitor and the philatelist who served as the Duke of York's advisor and designer of the Canada stamp series figuring King Edward VII, issued between 1903 and 1912.
Evidence: John Alexander Tilleard (born circa 1850, died 22 September 1913) was a British solicitor and the philatelist who was the first curator of the Royal Philatelic Collection. On the Duke of Edinburgh's initiative, Tilleard met the Duke of York on 28 February 1893. He agreed to become George's advisor to help manage his stamp collection. In 1903, Tilleard and George designed the Canada stamp series figuring King Edward VII, issued between 1903 and 1912. He permitted the participation of two philatelist princes to the Society : Alfred, Duke of Edinburgh, brother of future King Edward VII, elected honorary president in 1890, and Alfred's nephew George, Duke of York.