Files of letters, 1898-1905, that do not form part of the main series of letters received. The first file (AEC 3/1) extracted from a binder entitled 'Tredegar Estate', comprises letters, 1898-1900, mainly relating to Cardiff, Roath and Pontypridd, although there are also a number of letters relating to Newport. The remaining original files (AEC 3/2-11) comprise letters, 1903-1905, originally filed in rough alphabetical order in a series of ring binders. Two groups of loose letters and related papers, 1794-1939, has been appended to the series (AEC 3/12-13). These various groups of letters have been brought together for convenience; there is no suggestion that they originally formed a single series. The original binders have been discarded.