Comprises: (1) 3 boxes of autograph typescript and manuscript drafts of Mackendrick's plays, including (Box 1) many drafts of 'Rules' (at least 7 with some incomplete and one version called 'Religion'), (Box 2) 4 drafts of 'Who'll be next and who'll be lucky', with 1 draft bound in a file with a prose story, 'Fables' and the play 'Noli me tangere', 5 drafts of 'Canticle', and 6 drafts of 'Woyzeck', 1 with an extra section 'twenty-five', and (Box 3) 2 drafts of 'Lavender Blue', 2 drafts of 'Further prospects', 1 draft each of 'Noli me tangere' and 'Cain', a copy of Edward Bond's play 'Bingo' annotated by Mackendrick, 2 drafts of 'No hands', 4 drafts of 'Ludd!', 1 draft of 'Nasty anal teeter: a play for radio', by Clarence Thrubb (Bootle), 2 drafts of 'Doctor Struensee', and 1 draft of 'Over the page, or A boot in the snoot'; (2) 1 box (Box 4) of autograph typescript and manuscript drafts of other writings by Mackendrick, including (i) 1 file of short stories, (ii) 2 large files of miscellaneous poems, and (iii) 4 files of critical works by Mackendrick, namely, 3 on 'Hamlet', including his 1975 Leeds MA thesis entitled 'Five windows light the caverned man: an essay on the themes of perception and percipience in Hamlet', and 1 on Yeats entitled 'Words for music'; (3) 1 box (Box 5) of miscellaneous other material, including (i) 5 files of his correspondence with various colleagues and between others, dated from 1974 to 1994, 1 of these concerning the creation of this archive in the Brotherton Library by his friends, together with a typed list of his manuscripts acquired by the library in 1981, (ii) a small collection of colour and black and white photographs of his stage productions and 1 portrait photograph of himself, (iii) a small group of reviews of his plays extracted from the press, and (iv) a group of theatre programmes and other publicity material printed for productions of his plays, dated from 1970 until 1983; and (4) 9 large rolled posters advertising productions of his plays, held beside the boxes.