He was the original editor of Harmsworth's 'War of the Nations' - Wallace took over later. He was a journalist, a diplomat, an explorer, an aficionado of flying (he officiated at the first air meeting to take place in the UK - Doncaster October 1909), a wireless pioneer (he broadcast music from his own station long before radio was generally available) and he was and is a truly fascinating man.
His claims regarding his own activities are - perhaps, and sometimes - a little over zealous but he was, nevertheless tremendously successful in many fields in his lifetime.