Donald Campbell
Donald Malcolm Campbell, (23 March 19214 January 1967) was a British speed record breaker who broke eight absolute world speed records on water and on land in the 1950s and 1960s. He remains the only person to set both world land and water speed records in the same year (1964). He died during a water speed record attempt at Coniston Water in the Lake District, England.
Donald L. Campbell
Donald Lewis Campbell (August 5, 1904 – September 1, 2002) was an American chemical engineer. He and his team of three other scientists in the same field are most known for having developed the fluid catalytic cracking (FCC) process in 1942. This process provided a more efficient method for petroleum refiners to obtain high-octane gasoline by through the conversion of crude oil. The team’s revolutionary creation is explained in US Patent No. 2,451,804, A Method of and Apparatus for Contacting Solids and Gases, and eventually transformed the way petroleum was developed. Their invention was especially important in World War II, as refiners could finally provide enough fuel for the allies’ fighter planes to battle against the Axis. For his significant contributions to the field of chemical engineering, Campbell was inducted in the National Inventors Hall of Fame in 1999.