She attended Trinity College Dublin where she studied Business, Economics and Social Studies (BESS) following which she joined Price Waterhouse, now PwC. She held a number of senior management roles with PwC, including responsibility for Partnership and Company Secretarial matters and Partner affairs. Mary is a member of the Foundation Board of the RDS and a Board Member of the Children’s University Hospital, Temple Street, Dublin. Previously, she Chairperson of the Board of Cappagh National Orthopaedic Hospital, Dublin and a Board Member of Beaumont Hospital, Dublin.