Klugmann became the official historian of the British Communist Party , while Simon was later a very left - wing Labour peer .
James Klugmann and Roger Simon both went with Maclean to Cambridge and joined the Communist Party at around the same time .
James Klugmann became the official historian of the British Communist Party , while Simon was later a very left - wing Labour peer .
James Klugmann and Roger Simon both went with Maclean to Cambridge and joined the Communist Party at around the same time .