[1] CDRCU reached the height of its activity from February 1964 to February 1965, during which CDRCU cells were established in London, the Thames Valley, Scotland, West Yorkshire, Manchester and Cardiff, and public meetings were arranged.
[3] In October 1964, the CDRCU stood a candidate in Huyton in the general election, gaining 899 votes.
[4] After McCreery died (at the age of only 36) from cancer in 1965 in New Zealand, the activity of the group declined sharply.
In 1966 the London Workers' Committee split, becoming the Working People's Party of England.
[8] Noel Jenkinson, a Protestant from County Meath,[9] was another Ireland-born member of CDRCU who had joined from the Communist Party of Great Britain.