The bulk of the collection consists of research notes made during Lilley's time at St. John's College, Cambridge, relating to various aspects of the history, ideology, politics and impact on society of science and technology from early civilisation to the twentieth century. The notes include bibliography, extracts from many sources, and chronologies of science and technology milestones. c.1948 (MS 200/1);
Also present are photographs and postcards including as subjects the bridge at Ironbridge, Shropshire; people on a field study; and memorials of James Watt and Matthew Boulton in St. Mary's church, Handsworth. c.1953 (MS 200/2).