2 autograph letters signed and 4 typed letters signed from D. W. Davies, Ralph O. Erickson, E. T. Goodwin, Walter H. Lee, A. Lerner and A. C. Pigou to Mrs Turing. The letters contain recollections of AMT sent to Mrs Turing, before and after the publication of her biography, 'Alan M. Turing' (Heffer: Cambridge, 1959).

- 2 copies of review by N.A. Routledge in Cambridge Review, 11 June 1960, of Mrs Turing's biography.