Gordon Bennett -
It is commonly thought that this refers to James Gordon Bennett. JGB was a real person. In fact, with the expansiveness that is appropriate for this story, two real people. The elder James Gordon Bennett was born in Banffshire, Scotland in 1795 and emigrated to the USA, eventually becoming a journalist and founding the New York Herald in 1835. Bennett had a natural talent for journalism and the paper flourished. He was unblushing in what was then seen as improper descriptions of his relationship with his wife - describing her 'most magnificent' figure and publishing details of their wedding and the birth of James Gordon Bennett junior in 1841.
James Gordon Bennett Jr. inherited his father's talents for journalism and controversy, not to mention his multi-million dollar estate - and he's the one the phrase refers to. He took over control of the New York Herald in 1866, by which time he was well into an enthusiastic and hedonist playboy lifestyle, indulging in spending the family fortune on air and road racing in the USA, England and France.
The expletive Gordon Bennett appears to be a minced oath. It is a version of Gor blimey, which is itself a euphemistic version of God blind me. That, combined with Bennett's famously outrageous lifestyle and newsworthy stunts, is sufficient to explain why his name was picked out.