Complex sentence: Female ring spinners were represented by the expansionist "Cardroom Worker's Amalgamation" while the powerloom weavers were represented by the "Amalgamated Weavers Association" which had 114000 members.
Split into simpler sentences: Female ring spinners were represented by the expansionist "Cardroom Worker's Amalgamation". The powerloom weavers were represented by the "Amalgamated Weavers Association" who had 114000 members.