Though necessarily selective, I want to present a biography of the research which principally focusses on 24 families with an epileptic child, to illustrate changing perspectives, emergent problems and some of the solutions, or attempted solutions, to overcome them, indicating my position then as it was; and how, in the light of an examination o[ the data, revisions in procedures and interpretations were required. In particular, the paper focusses on the problems of making sense of extensive data, much of which is biographical, collected on one of these families. Analysis of these accounts suggests. [ABSTRACT FROM AUTHOR]