Aaron Tepfer, courtesy Yeshiva Darchei Torah. Struck by boat propeller in New York in August 2013 and died from his injuries.
Aspects of the Propeller Safety Debate chart
Houseboat Propeller Regulation Proposed and Withdrawn by USCG: Analysis by PGIC
History of Boat Propeller Safety
Mitigating Boat Propeller Injuries & Fatalities Chart