and Anthony Blunt (1907 - 1983). Several other people have been suggested as belonging to the ring, including John Cairncross. Blunt became a communist in the early 1930s and was recruited by the ...

The files confirm that Philby recruited Donald Maclean in 1934, and how Guy Burgess, Anthony Blunt and the fifth spy, John Cairncross, agreed to work for Russian intelligence soon afterwards.