Series 1: annual reports and quarterly returns, 1867-1960
Series 2: minutes of the National Executive Council, 1920-1965
Series 3: conference reports, 1923-1968
Series 4: rule books and Rules Revision Committee reports
Series 5: circulars, 1919-1968
Series 6: other papers including a letter book and proposition forms
Series 7: branch records including Bacup, Blackpool, Preston, Ramsbottom, Haslingden and Rawtenstall and Rossendale.