The aim of this study was to supply some facts about the position and role of women in British mathematics in the period 1800-1940: their access to mathematical training and to career structures within mathematics, and the nature of their involvement with particular emphasis on bibliographical contributions. It is intended to provide a far broader basis for analysis than has previously been available. The dataset consists of a complete listing of all women honours graduates in mathematics (circa 2500 individuals) sorted by university, year and class of degree. It also includes some biographical information (especially concerning subsequent academic achievement), and an indication of whether an individual published. The numbers of male mathematics graduates, sorted by university, year and class of degree, are also included for the purpose of comparison.