William Kennedy Laurie (W.K.L.) Dickson

homas Edison's assistant and the man who performed the first true acts of film editing. By experimenting with 'joining strips of exposed celluloid together,' Dickson moved beyond merely capturing a moment to constructing a sequence. His simultaneous decision to trim film to a width of 35mm established the physical standard that would define the craft and industry for a century, making him the uncredited patron saint of the editor's trim tool.