Mary McAleese, the former President of Ireland, and Cherie Booth, leading barrister and wife of former Prime Minister Tony Blair, have both taken on roles at St Mary’s University in recent months.Now another famous female Catholic has joined their number: Ruth Kelly is to become pro vice-chancellor for research and enterprise, a full-time post in which she will boost funding and build partnerships with the Government and businesses across the world. The former Secretary of State for Education has been out of the public eye for the past five years working for HSBC, most recently as global head of client strategy. A mother of four children who is understood to be a member of Opus Dei, she has decided to leave the corporate world (nobly waving goodbye to her bonus and a large salary) a