Although it began by asserting its fidelity to Trotskyism the SRG would move way from the 'orthodox' Trotskyism which they took from their origins in the RCP. Prior to this development, but setting the scene for it, the group experienced something of a change over of leading figures from 1952 to 1954. Most importantly of all Tony Cliff was permitted to return to London from his exile in Dublin and for the first time was able to function as an active leader of the group rather than through others or during visits to his family. Cliff's centrality to the group cannot be overemphasized in these years as his wife, Chanie Rosenberg, was also an active member and in September 1952 Michael Kidron, Cliff's brother-in-law, travelled to Britain from Israel. Kidron would later recruit Seymour Papert, later to become an important pioneer in the field of computers, who would also play a considerable role in the SRG. Others joining at this time were Stan Newens, later a Labour MP, and Bernard Dix, later prominent in the National Union of Public Employees (NUPE). Significantly, as the group was renewed by such new recruits it lost some of its earlier character as figures like Bill Ainsworth, Ken Tarbuck, later to pass through a number of left groups, and Duncan Hallas left, while Anil Moonesinghe and his wife Jeanne Hoban left for Ceylon where the former would eventually become a Minister. Duncan Hallas alone would return 14 years later and again play a leading role in what was by then the International Socialists.