Another of Blackton's tricks that Edison committed to film was "The Enchanted Drawing," (Video link) where Blackton draws a gentleman with a top hat and a bottle and glass of wine. By halting the camera and exchanging them for real objects, he turned the lightning sketch performance into a magical act of conjuring.
The French filmmaker Georges Méliès (1861-1938) was using the stopped camera trick right around the same time. In Le Livre Magique, drawings in a giant book become costumed characters.
Méliès also recorded on film his caricatures of Adolphe Thiers, Chamberlain, Queen Victoria, and Bismark, and most likely those early films were what inspired Blackton.
A good source on this topic is the book: Before Mickey: The Animated Film, 1898-1928
Previously on GurneyJourney: