Winsor McCay: Winsor McCay. Writer: Gertie the Dinosaur. Like many pioneers, the work of 'Winsor McCay' has been largely superseded by successors such as Walt Disney and Max Fleischer but he more than earns a place in film history for being the American cinema's first great cartoon animator. He started out as a newspaper cartoonist, achieving a national reputation for his strips 'Little Nemo in Slumberland' and 'Dreams of a Rarebit Fiend'....