Contains: Photograph of C.H. Waddington with pipe (1947); photograph of Toby Carter in lab coat with mouse (1947); photograph of C.H. Waddington and Salome Waelsch (1948); photograph of Susan [Thoulis?] (1948); photograph of the July 1948 Genetical Society meeting dinner, including C.H. Waddington and Guido Pontecorvo (1948); photograph of Guido Pontecorvo, E.B. Ford and an unknown individual talking at the July 1948 Genetical Society meeting (1948); photograph of four female research assistants in lab coats, titled 'the mouse girls' (26 February 1948); photograph of a man in a laboratory with 'Modelshi' written on the reverse (1948);Photograph of Jack Isaacson, J. Ronaldson and an unknown man and woman, posing with sheep (1950); photograph of C.H. Waddington, Helen Turner, Alan Greenwood and Eric Lucey at a party (1955); photograph of Eric Reeve, Helen Turner and Edith Reeve at a party (1955); photograph of Geoffrey Beale, C.H. Waddington and an unknown man at a party (1955); photograph of Jean Brachet and C.H. Waddington, both with pipes (1957); photograph of three unknown individuals [one possibly Brian Clarke] at a party (1957); photograph of Jean Brachet and George Clayton talking to an unknown woman at a party (1957); photograph of C.H. Waddington talking to an unknown man at a party (1957); photograph of C.H. Waddington and Salome Waelsch standing outside the Institute of Animal Genetics building (1948); photograph of Charlotte Auerbach, H. Slizynska, B. Slizynski and M. Drysdale (1973); photograph of H. Slizynska, B. Slizynski and C.H. Waddington (1973).