The Dempster Dumpster Evolution George Roby Dempster, the dumpster's initial inventor, was a mayor of Knoxville who had a trying experience with carrying city wastes through his building organization. He applied his understanding of heavy machinery to create a more practical way of gathering, transporting, and disposing of debris, http://dallasysgik.theideasblog.com/4061024/who-exactly-invented-the-roll-off-dumpster