Marcella is a former member of Offaly County Council, serving from 1999- 2009. She has also been Chairperson of the Midlands Regional Authority and Chairperson of the Birr Theatre and Arts Centre.
Marcella was also a Director of West Offaly Enterprise Fund Ltd and a member of the West Offaly Community Forum. Mother to two children, Marcella enjoys going to the theatre. Her favourite playwright is Martin McDonagh. She is also a fan of The West Wing television series.