There have been six accruals. The first accrual contains typescripts. The second accrual contains correspondence. The third (28-1991) accrual is an autograph music manuscript. The fourth accrual (45-1995) is a letter from Burgess to William Cole. The fifth accrual (23-1991) consists of letter from Burgess in the personas of his cat Lalage, and his dog, Suke, to Cleo, the cat of Ceridwen Looker. Looker's mother was the sister of Burgess's first wife, Lynne, who died in 1965. The fifth accrual (05-1998) also contains an autograph music manuscript. The sixth accrual consists of correspondence between Burgess and William Ready, McMcaster University Librarian, one letter from Burgess to his publisher and two photographs.