Harry Evans is Clerk of the Senate, editor of the seventh and subsequent editions of Odgers' Australian Senate Practice, and author of other works on constitutional and parliamentary matters. As well as writing the introduction to this volume, and to volume one of the series, he has taken a personal interest in the formation and development of the Biographical Dictionary. Ann Millar was involved in the infant beginnings of the Biographical Dictionary in the early 1990s, and has been editor and Director of the Biographical Dictionary Unit since the unit's establishment in 1997. She has written also on the role of women in the Federal Parliament.