Harry Dempsey(1949-2022), balanced his life between working as a freelancer and pursuing his passion for World War 1 aviation. Teaching himself to use illustration software such as Adobe Photoshop and InDesign as the industry digitalised, he also built up a large library of aviation literature and researched in depth to produce some of the most technically accurate colour profile artworks of World War 1 aircraft ever published. Throughout his life, Harry contributed artwork to more than 35 books in the Aircraft of the Aces and Aviation Elite Units series between 2000 and 2016.