Correspondence with trade unions M. Marshall (AEU) (2) 12/55 Cyril Hamnett (USDAW) (2) 3/56 J.Brocklebank (National Union of Agricultural Workers) (4) 6/56 Samuel Watson (NUM Durham) (3) 6/56 John Burns (The Fire Brigades Union), enclosing an abstract of a TUC circular concerning the 'Help for Hungary Fund' (5) 11/56 R.Smith (Union of Post Office Workers) (2) 3/58. 1955-1958