About R. H. Bruce Lockhart
Sir Robert Hamilton Bruce Lockhart, KCMG was a British diplomat, journalist, author, and secret agent. His 1932 book Memoirs of a British Agent became an international bestseller by telling of his experiences in Russia in 1918 following the Bolshevik Revolution. He left the country after he was accused of having led a failed plot to assassinate Vladimir Lenin, the so-called Ambassadors' plot, a charge which he always denied.
Biography source:
Wikipedia