Trueblood, an American crystallographer based at the University of California at Los Angeles, was a key collaborator in the research on Vitamin B12. His access to the large Standards Western Automatic Computer (SWAC) made rapid extensive calculations possible. This material was made available for the collection by G. Ferry, who had received it from Trueblood. Correspondence with other members of Hodgkin's and Trueblood's teams is also included, and there is a little personal material. (MSS.…

Letter of 10 Jan. includes Hodgkin's outline plan for a series of five papers on the work.

Publication arrangements (Bibliog. 31); early announcement of B12 structure by A. Todd (Ferry p.265); correspondence about computer requirements at Oxford and the history of SWAC administration, September.

From August Trueblood was on sabbatical leave with a Fulbright Fellowship as a visitor in Hodgkin's laboratory; publication (Bibliog. 34).

Includes Trueblood's comments on award of Nobel Prize to Todd, and Hodgkin's reply 'I found it a little sad...because clearly it mattered to my father' (Ferry p.287); comments and data for publications (Bibliog. 35, 37).

Includes some personal material from Jeanie (Trueblood's wife) and Louise (mother).

Letter of 1933, from Berlin, comments on rise of Nazism (Ferry pp.97-100).

Dorothy Wrinch interacted with Hodgkin's life in many ways: as a friend and colleague in the 1930s; as the indirect cause of Hodgkin's first meeting with Thomas in 1937; and as the proponent of a flawed theory of protein structure which Hodgkin found herself bound to oppose despite their long friendship. See also MS. Eng. c. 5709/7-9 in the main Hodgkin papers; Ferry pp.147-160. Correspondence. Three letters only.

Correspondence with Pnina G. Abir-Am on her paper, 'The career of Dorothy Wrinch', a copy of which is enclosed.

Correspondence with P. Laszlo on a draft chapter, 'Dorothy Wrinch, or a daring Renaissance scholar in an age of patient data collection', a copy of which is enclosed with a few marginal notes by Hodgkin. Includes four page typescript reply by Hodgkin and four page manuscript recollections of their friendship and difficulties over protein structure.