Letter from Peter Porter to Albert Hirst, 2 November 1970 Box (Shared) Unit ID: 1.16 Date: 2 November 1970
Letter from Peter Porter to Albert Hirst, 2 October 1971 Box (Shared) Unit ID: 1.17 Date: 2 October 1971
Letter from Peter Porter to Albert Hirst, 6 February 1968 Box (Shared) Unit ID: 1.11 Date: 6 February 1968
Letter from Peter Porter to Albert Hirst, 6 October 1968 Box (Shared) Unit ID: 1.7 Date: 6 October 1968
Letter from Peter Porter to Albert Hirst, 7 September 1970 Box (Shared) Unit ID: 1.15 Date: 7 September 1970
Letter from Peter Porter to Albert Hirst, 9 January 1969 Box (Shared) Unit ID: 1.10 Date: 9 January 1969