Correspondence received by Robert Leader (not from Anthony John Mundella), relating mainly to Liberal organisation and the 1880 General Election. Including letters from Henry Joseph Wilson (1-3, 5-6, 8, 10-11, 18, 20, 22-23, 25, 27-28, 30, 31, 37, 45, 48-49), Sir Frederick Thorpe Mappin (4, 9, 14-15, 21, 26, 29, 32-34, 47, 51), Samuel Danks Waddy (7), Robert Applegarth (12), Maria Theresa Mundella (16), Edward Baines of Leeds (35), Jesse Collings (36), Charles Stuart-Wortley (38,42), Henry Wentworth-Fitzwilliam (40), Francis Schnadhorst (44), John William Pye-Smith (46), William John Clegg (50), Joseph Chamberlain (54), and W. Moore Ede (56).